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Finding the Fourth Proportional to 559,975.62, 772,747.10 and 318,253.98

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Solution

The fourth proportional to 559,975.62, 772,747.10 and 318,253.98 is: 439,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,975.62 : 772,747.10 = 318,253.98 : x
  2. Step 2: Convert to fraction form
    559,975.62/772,747.10 = 318,253.98/x
  3. Step 3: Cross multiply
    559,975.62x = 772,747.10 × 318,253.98
  4. Step 4: Simplify right side
    559,975.62x = 245,929,840,108.46
  5. Step 5: Solve for x
    x = 245,929,840,108.46/559,975.62
  6. Step 6: Final answer
    x = 439,179.55

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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.