Home / 771,358.88-1,157,784.62-372,280.62

Finding the Fourth Proportional to 771,358.88, 1,157,784.62 and 372,280.62

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Solution

The fourth proportional to 771,358.88, 1,157,784.62 and 372,280.62 is: 558,781.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,358.88 : 1,157,784.62 = 372,280.62 : x
  2. Step 2: Convert to fraction form
    771,358.88/1,157,784.62 = 372,280.62/x
  3. Step 3: Cross multiply
    771,358.88x = 1,157,784.62 × 372,280.62
  4. Step 4: Simplify right side
    771,358.88x = 431,020,776,160.06
  5. Step 5: Solve for x
    x = 431,020,776,160.06/771,358.88
  6. Step 6: Final answer
    x = 558,781.12

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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.