Home / 661,681.30-992,930.20-306,629.14

Finding the Fourth Proportional to 661,681.30, 992,930.20 and 306,629.14

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Solution

The fourth proportional to 661,681.30, 992,930.20 and 306,629.14 is: 460,132.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,681.30 : 992,930.20 = 306,629.14 : x
  2. Step 2: Convert to fraction form
    661,681.30/992,930.20 = 306,629.14/x
  3. Step 3: Cross multiply
    661,681.30x = 992,930.20 × 306,629.14
  4. Step 4: Simplify right side
    661,681.30x = 304,461,333,306.03
  5. Step 5: Solve for x
    x = 304,461,333,306.03/661,681.30
  6. Step 6: Final answer
    x = 460,132.90

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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.