Home / 399,707.02-599,654.91-129,834.34

Finding the Fourth Proportional to 399,707.02, 599,654.91 and 129,834.34

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Solution

The fourth proportional to 399,707.02, 599,654.91 and 129,834.34 is: 194,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,707.02 : 599,654.91 = 129,834.34 : x
  2. Step 2: Convert to fraction form
    399,707.02/599,654.91 = 129,834.34/x
  3. Step 3: Cross multiply
    399,707.02x = 599,654.91 × 129,834.34
  4. Step 4: Simplify right side
    399,707.02x = 77,855,799,467.61
  5. Step 5: Solve for x
    x = 77,855,799,467.61/399,707.02
  6. Step 6: Final answer
    x = 194,782.17

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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.