Home / 992,945.40-1,489,418.10-615,031.80

Finding the Fourth Proportional to 992,945.40, 1,489,418.10 and 615,031.80

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Solution

The fourth proportional to 992,945.40, 1,489,418.10 and 615,031.80 is: 922,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,945.40 : 1,489,418.10 = 615,031.80 : x
  2. Step 2: Convert to fraction form
    992,945.40/1,489,418.10 = 615,031.80/x
  3. Step 3: Cross multiply
    992,945.40x = 1,489,418.10 × 615,031.80
  4. Step 4: Simplify right side
    992,945.40x = 916,039,494,995.58
  5. Step 5: Solve for x
    x = 916,039,494,995.58/992,945.40
  6. Step 6: Final answer
    x = 922,547.70

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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.