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Finding the Fourth Proportional to 610,427.20, 916,515.60 and 461,711.20

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Solution

The fourth proportional to 610,427.20, 916,515.60 and 461,711.20 is: 693,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,427.20 : 916,515.60 = 461,711.20 : x
  2. Step 2: Convert to fraction form
    610,427.20/916,515.60 = 461,711.20/x
  3. Step 3: Cross multiply
    610,427.20x = 916,515.60 × 461,711.20
  4. Step 4: Simplify right side
    610,427.20x = 423,165,517,494.72
  5. Step 5: Solve for x
    x = 423,165,517,494.72/610,427.20
  6. Step 6: Final answer
    x = 693,228.48

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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.