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Finding the Fourth Proportional to 582,124.60, 871,437.30 and 345,345.40

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Solution

The fourth proportional to 582,124.60, 871,437.30 and 345,345.40 is: 516,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,124.60 : 871,437.30 = 345,345.40 : x
  2. Step 2: Convert to fraction form
    582,124.60/871,437.30 = 345,345.40/x
  3. Step 3: Cross multiply
    582,124.60x = 871,437.30 × 345,345.40
  4. Step 4: Simplify right side
    582,124.60x = 300,946,862,943.42
  5. Step 5: Solve for x
    x = 300,946,862,943.42/582,124.60
  6. Step 6: Final answer
    x = 516,980.15

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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.