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Finding the Fourth Proportional to 441,123.60, 661,685.40 and 402,416.40

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Solution

The fourth proportional to 441,123.60, 661,685.40 and 402,416.40 is: 603,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,123.60 : 661,685.40 = 402,416.40 : x
  2. Step 2: Convert to fraction form
    441,123.60/661,685.40 = 402,416.40/x
  3. Step 3: Cross multiply
    441,123.60x = 661,685.40 × 402,416.40
  4. Step 4: Simplify right side
    441,123.60x = 266,273,056,600.56
  5. Step 5: Solve for x
    x = 266,273,056,600.56/441,123.60
  6. Step 6: Final answer
    x = 603,624.60

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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.