Home / 679,962.78-938,366.15-374,047.02

Finding the Fourth Proportional to 679,962.78, 938,366.15 and 374,047.02

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Solution

The fourth proportional to 679,962.78, 938,366.15 and 374,047.02 is: 516,194.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,962.78 : 938,366.15 = 374,047.02 : x
  2. Step 2: Convert to fraction form
    679,962.78/938,366.15 = 374,047.02/x
  3. Step 3: Cross multiply
    679,962.78x = 938,366.15 × 374,047.02
  4. Step 4: Simplify right side
    679,962.78x = 350,993,060,206.14
  5. Step 5: Solve for x
    x = 350,993,060,206.14/679,962.78
  6. Step 6: Final answer
    x = 516,194.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.