Home / 840,723.64-1,160,224.18-478,199.64

Finding the Fourth Proportional to 840,723.64, 1,160,224.18 and 478,199.64

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Solution

The fourth proportional to 840,723.64, 1,160,224.18 and 478,199.64 is: 659,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,723.64 : 1,160,224.18 = 478,199.64 : x
  2. Step 2: Convert to fraction form
    840,723.64/1,160,224.18 = 478,199.64/x
  3. Step 3: Cross multiply
    840,723.64x = 1,160,224.18 × 478,199.64
  4. Step 4: Simplify right side
    840,723.64x = 554,818,785,195.30
  5. Step 5: Solve for x
    x = 554,818,785,195.30/840,723.64
  6. Step 6: Final answer
    x = 659,930.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.