Home / 755,780.66-1,042,796.16-429,020.99

Finding the Fourth Proportional to 755,780.66, 1,042,796.16 and 429,020.99

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Solution

The fourth proportional to 755,780.66, 1,042,796.16 and 429,020.99 is: 591,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,780.66 : 1,042,796.16 = 429,020.99 : x
  2. Step 2: Convert to fraction form
    755,780.66/1,042,796.16 = 429,020.99/x
  3. Step 3: Cross multiply
    755,780.66x = 1,042,796.16 × 429,020.99
  4. Step 4: Simplify right side
    755,780.66x = 447,381,435,717.42
  5. Step 5: Solve for x
    x = 447,381,435,717.42/755,780.66
  6. Step 6: Final answer
    x = 591,946.13

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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.