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Finding the Fourth Proportional to 650,540.40, 975,810.60 and 472,210.80

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Solution

The fourth proportional to 650,540.40, 975,810.60 and 472,210.80 is: 708,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,540.40 : 975,810.60 = 472,210.80 : x
  2. Step 2: Convert to fraction form
    650,540.40/975,810.60 = 472,210.80/x
  3. Step 3: Cross multiply
    650,540.40x = 975,810.60 × 472,210.80
  4. Step 4: Simplify right side
    650,540.40x = 460,788,304,074.48
  5. Step 5: Solve for x
    x = 460,788,304,074.48/650,540.40
  6. Step 6: Final answer
    x = 708,316.20

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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.