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Finding the Fourth Proportional to 559,781.08, 772,497.95 and 305,132.27

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Solution

The fourth proportional to 559,781.08, 772,497.95 and 305,132.27 is: 421,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,781.08 : 772,497.95 = 305,132.27 : x
  2. Step 2: Convert to fraction form
    559,781.08/772,497.95 = 305,132.27/x
  3. Step 3: Cross multiply
    559,781.08x = 772,497.95 × 305,132.27
  4. Step 4: Simplify right side
    559,781.08x = 235,714,047,665.70
  5. Step 5: Solve for x
    x = 235,714,047,665.70/559,781.08
  6. Step 6: Final answer
    x = 421,082.56

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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.