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Finding the Fourth Proportional to 648,034.80, 972,052.20 and 410,672.40

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Solution

The fourth proportional to 648,034.80, 972,052.20 and 410,672.40 is: 616,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,034.80 : 972,052.20 = 410,672.40 : x
  2. Step 2: Convert to fraction form
    648,034.80/972,052.20 = 410,672.40/x
  3. Step 3: Cross multiply
    648,034.80x = 972,052.20 × 410,672.40
  4. Step 4: Simplify right side
    648,034.80x = 399,195,009,899.28
  5. Step 5: Solve for x
    x = 399,195,009,899.28/648,034.80
  6. Step 6: Final answer
    x = 616,008.60

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Similar ratio
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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.