Home / 724,959.96-1,000,478.04-402,671.16

Finding the Fourth Proportional to 724,959.96, 1,000,478.04 and 402,671.16

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Solution

The fourth proportional to 724,959.96, 1,000,478.04 and 402,671.16 is: 555,704.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,959.96 : 1,000,478.04 = 402,671.16 : x
  2. Step 2: Convert to fraction form
    724,959.96/1,000,478.04 = 402,671.16/x
  3. Step 3: Cross multiply
    724,959.96x = 1,000,478.04 × 402,671.16
  4. Step 4: Simplify right side
    724,959.96x = 402,863,652,921.33
  5. Step 5: Solve for x
    x = 402,863,652,921.33/724,959.96
  6. Step 6: Final answer
    x = 555,704.69

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Double scale
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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.