Home / 709,829-1,064,218.62-429,283.88

Finding the Fourth Proportional to 709,829, 1,064,218.62 and 429,283.88

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Solution

The fourth proportional to 709,829, 1,064,218.62 and 429,283.88 is: 643,608.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,829 : 1,064,218.62 = 429,283.88 : x
  2. Step 2: Convert to fraction form
    709,829/1,064,218.62 = 429,283.88/x
  3. Step 3: Cross multiply
    709,829x = 1,064,218.62 × 429,283.88
  4. Step 4: Simplify right side
    709,829x = 456,851,898,361.85
  5. Step 5: Solve for x
    x = 456,851,898,361.85/709,829
  6. Step 6: Final answer
    x = 643,608.39

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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.