Home / 516,155.42-712,007.56-479,622.04

Finding the Fourth Proportional to 516,155.42, 712,007.56 and 479,622.04

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Solution

The fourth proportional to 516,155.42, 712,007.56 and 479,622.04 is: 661,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,155.42 : 712,007.56 = 479,622.04 : x
  2. Step 2: Convert to fraction form
    516,155.42/712,007.56 = 479,622.04/x
  3. Step 3: Cross multiply
    516,155.42x = 712,007.56 × 479,622.04
  4. Step 4: Simplify right side
    516,155.42x = 341,494,518,422.62
  5. Step 5: Solve for x
    x = 341,494,518,422.62/516,155.42
  6. Step 6: Final answer
    x = 661,611.80

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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.