Home / 785,216.92-1,177,831.52-430,037.18

Finding the Fourth Proportional to 785,216.92, 1,177,831.52 and 430,037.18

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Solution

The fourth proportional to 785,216.92, 1,177,831.52 and 430,037.18 is: 645,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,216.92 : 1,177,831.52 = 430,037.18 : x
  2. Step 2: Convert to fraction form
    785,216.92/1,177,831.52 = 430,037.18/x
  3. Step 3: Cross multiply
    785,216.92x = 1,177,831.52 × 430,037.18
  4. Step 4: Simplify right side
    785,216.92x = 506,511,345,375.91
  5. Step 5: Solve for x
    x = 506,511,345,375.91/785,216.92
  6. Step 6: Final answer
    x = 645,059.13

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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.