Home / 775,129.86-1,069,691.64-426,284.05

Finding the Fourth Proportional to 775,129.86, 1,069,691.64 and 426,284.05

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Solution

The fourth proportional to 775,129.86, 1,069,691.64 and 426,284.05 is: 588,278.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,129.86 : 1,069,691.64 = 426,284.05 : x
  2. Step 2: Convert to fraction form
    775,129.86/1,069,691.64 = 426,284.05/x
  3. Step 3: Cross multiply
    775,129.86x = 1,069,691.64 × 426,284.05
  4. Step 4: Simplify right side
    775,129.86x = 455,992,484,550.34
  5. Step 5: Solve for x
    x = 455,992,484,550.34/775,129.86
  6. Step 6: Final answer
    x = 588,278.83

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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.