Home / 679,869.03-938,221.14-373,976.76

Finding the Fourth Proportional to 679,869.03, 938,221.14 and 373,976.76

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Solution

The fourth proportional to 679,869.03, 938,221.14 and 373,976.76 is: 516,088.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,869.03 : 938,221.14 = 373,976.76 : x
  2. Step 2: Convert to fraction form
    679,869.03/938,221.14 = 373,976.76/x
  3. Step 3: Cross multiply
    679,869.03x = 938,221.14 × 373,976.76
  4. Step 4: Simplify right side
    679,869.03x = 350,872,900,698.29
  5. Step 5: Solve for x
    x = 350,872,900,698.29/679,869.03
  6. Step 6: Final answer
    x = 516,088.96

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Double scale
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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.