Home / 872,141.40-1,307,337.30-399,166.20

Finding the Fourth Proportional to 872,141.40, 1,307,337.30 and 399,166.20

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Solution

The fourth proportional to 872,141.40, 1,307,337.30 and 399,166.20 is: 598,348.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,141.40 : 1,307,337.30 = 399,166.20 : x
  2. Step 2: Convert to fraction form
    872,141.40/1,307,337.30 = 399,166.20/x
  3. Step 3: Cross multiply
    872,141.40x = 1,307,337.30 × 399,166.20
  4. Step 4: Simplify right side
    872,141.40x = 521,844,862,159.26
  5. Step 5: Solve for x
    x = 521,844,862,159.26/872,141.40
  6. Step 6: Final answer
    x = 598,348.92

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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.