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Finding the Fourth Proportional to 881,209.60, 1,321,814.40 and 460,614.40

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Solution

The fourth proportional to 881,209.60, 1,321,814.40 and 460,614.40 is: 690,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,209.60 : 1,321,814.40 = 460,614.40 : x
  2. Step 2: Convert to fraction form
    881,209.60/1,321,814.40 = 460,614.40/x
  3. Step 3: Cross multiply
    881,209.60x = 1,321,814.40 × 460,614.40
  4. Step 4: Simplify right side
    881,209.60x = 608,846,746,767.36
  5. Step 5: Solve for x
    x = 608,846,746,767.36/881,209.60
  6. Step 6: Final answer
    x = 690,921.60

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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.