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Finding the Fourth Proportional to 559,496.32, 772,095.20 and 304,849.60

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Solution

The fourth proportional to 559,496.32, 772,095.20 and 304,849.60 is: 420,687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,496.32 : 772,095.20 = 304,849.60 : x
  2. Step 2: Convert to fraction form
    559,496.32/772,095.20 = 304,849.60/x
  3. Step 3: Cross multiply
    559,496.32x = 772,095.20 × 304,849.60
  4. Step 4: Simplify right side
    559,496.32x = 235,372,912,881.92
  5. Step 5: Solve for x
    x = 235,372,912,881.92/559,496.32
  6. Step 6: Final answer
    x = 420,687.15

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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.