Home / 642,031.28-885,765.24-415,801.52

Finding the Fourth Proportional to 642,031.28, 885,765.24 and 415,801.52

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Solution

The fourth proportional to 642,031.28, 885,765.24 and 415,801.52 is: 573,652.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,031.28 : 885,765.24 = 415,801.52 : x
  2. Step 2: Convert to fraction form
    642,031.28/885,765.24 = 415,801.52/x
  3. Step 3: Cross multiply
    642,031.28x = 885,765.24 × 415,801.52
  4. Step 4: Simplify right side
    642,031.28x = 368,302,533,155.17
  5. Step 5: Solve for x
    x = 368,302,533,155.17/642,031.28
  6. Step 6: Final answer
    x = 573,652.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.