Home / 885,918.48-1,329,089.12-286,880.28

Finding the Fourth Proportional to 885,918.48, 1,329,089.12 and 286,880.28

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Solution

The fourth proportional to 885,918.48, 1,329,089.12 and 286,880.28 is: 430,388.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,918.48 : 1,329,089.12 = 286,880.28 : x
  2. Step 2: Convert to fraction form
    885,918.48/1,329,089.12 = 286,880.28/x
  3. Step 3: Cross multiply
    885,918.48x = 1,329,089.12 × 286,880.28
  4. Step 4: Simplify right side
    885,918.48x = 381,289,458,890.55
  5. Step 5: Solve for x
    x = 381,289,458,890.55/885,918.48
  6. Step 6: Final answer
    x = 430,388.88

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Double scale
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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.