Home / 484,916.13-727,373.72-129,920.47

Finding the Fourth Proportional to 484,916.13, 727,373.72 and 129,920.47

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Solution

The fourth proportional to 484,916.13, 727,373.72 and 129,920.47 is: 194,880.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,916.13 : 727,373.72 = 129,920.47 : x
  2. Step 2: Convert to fraction form
    484,916.13/727,373.72 = 129,920.47/x
  3. Step 3: Cross multiply
    484,916.13x = 727,373.72 × 129,920.47
  4. Step 4: Simplify right side
    484,916.13x = 94,500,735,568.05
  5. Step 5: Solve for x
    x = 94,500,735,568.05/484,916.13
  6. Step 6: Final answer
    x = 194,880.58

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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.