Home / 775,129.54-1,069,691.21-426,283.74

Finding the Fourth Proportional to 775,129.54, 1,069,691.21 and 426,283.74

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Solution

The fourth proportional to 775,129.54, 1,069,691.21 and 426,283.74 is: 588,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,129.54 : 1,069,691.21 = 426,283.74 : x
  2. Step 2: Convert to fraction form
    775,129.54/1,069,691.21 = 426,283.74/x
  3. Step 3: Cross multiply
    775,129.54x = 1,069,691.21 × 426,283.74
  4. Step 4: Simplify right side
    775,129.54x = 455,991,964,566.87
  5. Step 5: Solve for x
    x = 455,991,964,566.87/775,129.54
  6. Step 6: Final answer
    x = 588,278.40

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Double scale
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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.