Home / 679,897.43-938,276.15-373,981.69

Finding the Fourth Proportional to 679,897.43, 938,276.15 and 373,981.69

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Solution

The fourth proportional to 679,897.43, 938,276.15 and 373,981.69 is: 516,104.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,897.43 : 938,276.15 = 373,981.69 : x
  2. Step 2: Convert to fraction form
    679,897.43/938,276.15 = 373,981.69/x
  3. Step 3: Cross multiply
    679,897.43x = 938,276.15 × 373,981.69
  4. Step 4: Simplify right side
    679,897.43x = 350,898,098,393.79
  5. Step 5: Solve for x
    x = 350,898,098,393.79/679,897.43
  6. Step 6: Final answer
    x = 516,104.46

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1.5x scale

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.