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Finding the Fourth Proportional to 605,701.20, 907,531.20 and 478,855.20

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Solution

The fourth proportional to 605,701.20, 907,531.20 and 478,855.20 is: 717,475.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,701.20 : 907,531.20 = 478,855.20 : x
  2. Step 2: Convert to fraction form
    605,701.20/907,531.20 = 478,855.20/x
  3. Step 3: Cross multiply
    605,701.20x = 907,531.20 × 478,855.20
  4. Step 4: Simplify right side
    605,701.20x = 434,576,034,282.24
  5. Step 5: Solve for x
    x = 434,576,034,282.24/605,701.20
  6. Step 6: Final answer
    x = 717,475.93

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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.