Home / 885,888.49-1,329,026.53-286,910.20

Finding the Fourth Proportional to 885,888.49, 1,329,026.53 and 286,910.20

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Solution

The fourth proportional to 885,888.49, 1,329,026.53 and 286,910.20 is: 430,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,888.49 : 1,329,026.53 = 286,910.20 : x
  2. Step 2: Convert to fraction form
    885,888.49/1,329,026.53 = 286,910.20/x
  3. Step 3: Cross multiply
    885,888.49x = 1,329,026.53 × 286,910.20
  4. Step 4: Simplify right side
    885,888.49x = 381,311,263,487.76
  5. Step 5: Solve for x
    x = 381,311,263,487.76/885,888.49
  6. Step 6: Final answer
    x = 430,428.06

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.