Home / 885,228.30-1,326,092.85-485,153.10

Finding the Fourth Proportional to 885,228.30, 1,326,092.85 and 485,153.10

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Solution

The fourth proportional to 885,228.30, 1,326,092.85 and 485,153.10 is: 726,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,228.30 : 1,326,092.85 = 485,153.10 : x
  2. Step 2: Convert to fraction form
    885,228.30/1,326,092.85 = 485,153.10/x
  3. Step 3: Cross multiply
    885,228.30x = 1,326,092.85 × 485,153.10
  4. Step 4: Simplify right side
    885,228.30x = 643,358,057,065.34
  5. Step 5: Solve for x
    x = 643,358,057,065.34/885,228.30
  6. Step 6: Final answer
    x = 726,770.77

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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.