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Finding the Fourth Proportional to 659,220.38, 909,698.85 and 372,746.46

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Solution

The fourth proportional to 659,220.38, 909,698.85 and 372,746.46 is: 514,375.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,220.38 : 909,698.85 = 372,746.46 : x
  2. Step 2: Convert to fraction form
    659,220.38/909,698.85 = 372,746.46/x
  3. Step 3: Cross multiply
    659,220.38x = 909,698.85 × 372,746.46
  4. Step 4: Simplify right side
    659,220.38x = 339,087,026,003.57
  5. Step 5: Solve for x
    x = 339,087,026,003.57/659,220.38
  6. Step 6: Final answer
    x = 514,375.83

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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.