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Finding the Fourth Proportional to 684,765.25, 944,657.68 and 443,125.84

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Solution

The fourth proportional to 684,765.25, 944,657.68 and 443,125.84 is: 611,307.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,765.25 : 944,657.68 = 443,125.84 : x
  2. Step 2: Convert to fraction form
    684,765.25/944,657.68 = 443,125.84/x
  3. Step 3: Cross multiply
    684,765.25x = 944,657.68 × 443,125.84
  4. Step 4: Simplify right side
    684,765.25x = 418,602,227,962.45
  5. Step 5: Solve for x
    x = 418,602,227,962.45/684,765.25
  6. Step 6: Final answer
    x = 611,307.64

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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.