Home / 992,979.60-1,489,663.80-424,359.60

Finding the Fourth Proportional to 992,979.60, 1,489,663.80 and 424,359.60

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Solution

The fourth proportional to 992,979.60, 1,489,663.80 and 424,359.60 is: 636,622.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,979.60 : 1,489,663.80 = 424,359.60 : x
  2. Step 2: Convert to fraction form
    992,979.60/1,489,663.80 = 424,359.60/x
  3. Step 3: Cross multiply
    992,979.60x = 1,489,663.80 × 424,359.60
  4. Step 4: Simplify right side
    992,979.60x = 632,153,134,302.48
  5. Step 5: Solve for x
    x = 632,153,134,302.48/992,979.60
  6. Step 6: Final answer
    x = 636,622.48

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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.