Home / 885,402.90-1,221,829.11-498,239.91

Finding the Fourth Proportional to 885,402.90, 1,221,829.11 and 498,239.91

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Solution

The fourth proportional to 885,402.90, 1,221,829.11 and 498,239.91 is: 687,555.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,402.90 : 1,221,829.11 = 498,239.91 : x
  2. Step 2: Convert to fraction form
    885,402.90/1,221,829.11 = 498,239.91/x
  3. Step 3: Cross multiply
    885,402.90x = 1,221,829.11 × 498,239.91
  4. Step 4: Simplify right side
    885,402.90x = 608,764,025,801.78
  5. Step 5: Solve for x
    x = 608,764,025,801.78/885,402.90
  6. Step 6: Final answer
    x = 687,555.94

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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.