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Finding the Fourth Proportional to 424,410.30, 636,219.72 and 291,353.22

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Solution

The fourth proportional to 424,410.30, 636,219.72 and 291,353.22 is: 436,758.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,410.30 : 636,219.72 = 291,353.22 : x
  2. Step 2: Convert to fraction form
    424,410.30/636,219.72 = 291,353.22/x
  3. Step 3: Cross multiply
    424,410.30x = 636,219.72 × 291,353.22
  4. Step 4: Simplify right side
    424,410.30x = 185,364,664,049.50
  5. Step 5: Solve for x
    x = 185,364,664,049.50/424,410.30
  6. Step 6: Final answer
    x = 436,758.17

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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.