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Finding the Fourth Proportional to 561,677.60, 842,516.40 and 349,101.20

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Solution

The fourth proportional to 561,677.60, 842,516.40 and 349,101.20 is: 523,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,677.60 : 842,516.40 = 349,101.20 : x
  2. Step 2: Convert to fraction form
    561,677.60/842,516.40 = 349,101.20/x
  3. Step 3: Cross multiply
    561,677.60x = 842,516.40 × 349,101.20
  4. Step 4: Simplify right side
    561,677.60x = 294,123,486,259.68
  5. Step 5: Solve for x
    x = 294,123,486,259.68/561,677.60
  6. Step 6: Final answer
    x = 523,651.80

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1.5x scale

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.