Home / 742,403.88-1,024,520.04-402,872.04

Finding the Fourth Proportional to 742,403.88, 1,024,520.04 and 402,872.04

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Solution

The fourth proportional to 742,403.88, 1,024,520.04 and 402,872.04 is: 555,964.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,403.88 : 1,024,520.04 = 402,872.04 : x
  2. Step 2: Convert to fraction form
    742,403.88/1,024,520.04 = 402,872.04/x
  3. Step 3: Cross multiply
    742,403.88x = 1,024,520.04 × 402,872.04
  4. Step 4: Simplify right side
    742,403.88x = 412,750,478,535.68
  5. Step 5: Solve for x
    x = 412,750,478,535.68/742,403.88
  6. Step 6: Final answer
    x = 555,964.87

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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.