Home / 936,442.40-1,292,287.92-506,729.84

Finding the Fourth Proportional to 936,442.40, 1,292,287.92 and 506,729.84

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Solution

The fourth proportional to 936,442.40, 1,292,287.92 and 506,729.84 is: 699,285.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,442.40 : 1,292,287.92 = 506,729.84 : x
  2. Step 2: Convert to fraction form
    936,442.40/1,292,287.92 = 506,729.84/x
  3. Step 3: Cross multiply
    936,442.40x = 1,292,287.92 × 506,729.84
  4. Step 4: Simplify right side
    936,442.40x = 654,840,850,935.53
  5. Step 5: Solve for x
    x = 654,840,850,935.53/936,442.40
  6. Step 6: Final answer
    x = 699,285.78

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1.5x scale

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.