Home / 771,497.80-1,156,241.38-429,927.61

Finding the Fourth Proportional to 771,497.80, 1,156,241.38 and 429,927.61

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Solution

The fourth proportional to 771,497.80, 1,156,241.38 and 429,927.61 is: 644,331.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,497.80 : 1,156,241.38 = 429,927.61 : x
  2. Step 2: Convert to fraction form
    771,497.80/1,156,241.38 = 429,927.61/x
  3. Step 3: Cross multiply
    771,497.80x = 1,156,241.38 × 429,927.61
  4. Step 4: Simplify right side
    771,497.80x = 497,100,093,086.50
  5. Step 5: Solve for x
    x = 497,100,093,086.50/771,497.80
  6. Step 6: Final answer
    x = 644,331.19

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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.