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Finding the Fourth Proportional to 437,999.60, 655,770.60 and 425,711.60

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Solution

The fourth proportional to 437,999.60, 655,770.60 and 425,711.60 is: 637,373.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,999.60 : 655,770.60 = 425,711.60 : x
  2. Step 2: Convert to fraction form
    437,999.60/655,770.60 = 425,711.60/x
  3. Step 3: Cross multiply
    437,999.60x = 655,770.60 × 425,711.60
  4. Step 4: Simplify right side
    437,999.60x = 279,169,151,358.96
  5. Step 5: Solve for x
    x = 279,169,151,358.96/437,999.60
  6. Step 6: Final answer
    x = 637,373.07

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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.