Home / 992,742.66-1,489,743.82-424,128.04

Finding the Fourth Proportional to 992,742.66, 1,489,743.82 and 424,128.04

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Solution

The fourth proportional to 992,742.66, 1,489,743.82 and 424,128.04 is: 636,461.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,742.66 : 1,489,743.82 = 424,128.04 : x
  2. Step 2: Convert to fraction form
    992,742.66/1,489,743.82 = 424,128.04/x
  3. Step 3: Cross multiply
    992,742.66x = 1,489,743.82 × 424,128.04
  4. Step 4: Simplify right side
    992,742.66x = 631,842,126,478.71
  5. Step 5: Solve for x
    x = 631,842,126,478.71/992,742.66
  6. Step 6: Final answer
    x = 636,461.14

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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.