Home / 435,929.59-653,906.65-120,386.49

Finding the Fourth Proportional to 435,929.59, 653,906.65 and 120,386.49

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Solution

The fourth proportional to 435,929.59, 653,906.65 and 120,386.49 is: 180,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,929.59 : 653,906.65 = 120,386.49 : x
  2. Step 2: Convert to fraction form
    435,929.59/653,906.65 = 120,386.49/x
  3. Step 3: Cross multiply
    435,929.59x = 653,906.65 × 120,386.49
  4. Step 4: Simplify right side
    435,929.59x = 78,721,526,381.16
  5. Step 5: Solve for x
    x = 78,721,526,381.16/435,929.59
  6. Step 6: Final answer
    x = 180,583.12

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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.