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Finding the Fourth Proportional to 437,411.40, 655,766.70 and 402,419.40

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Solution

The fourth proportional to 437,411.40, 655,766.70 and 402,419.40 is: 603,306.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,411.40 : 655,766.70 = 402,419.40 : x
  2. Step 2: Convert to fraction form
    437,411.40/655,766.70 = 402,419.40/x
  3. Step 3: Cross multiply
    437,411.40x = 655,766.70 × 402,419.40
  4. Step 4: Simplify right side
    437,411.40x = 263,893,241,953.98
  5. Step 5: Solve for x
    x = 263,893,241,953.98/437,411.40
  6. Step 6: Final answer
    x = 603,306.73

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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.