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Finding the Fourth Proportional to 621,815.60, 932,723.40 and 548,332.40

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Solution

The fourth proportional to 621,815.60, 932,723.40 and 548,332.40 is: 822,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,815.60 : 932,723.40 = 548,332.40 : x
  2. Step 2: Convert to fraction form
    621,815.60/932,723.40 = 548,332.40/x
  3. Step 3: Cross multiply
    621,815.60x = 932,723.40 × 548,332.40
  4. Step 4: Simplify right side
    621,815.60x = 511,442,460,458.16
  5. Step 5: Solve for x
    x = 511,442,460,458.16/621,815.60
  6. Step 6: Final answer
    x = 822,498.60

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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.