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Finding the Fourth Proportional to 666,597.92, 998,894.64 and 266,842.40

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Solution

The fourth proportional to 666,597.92, 998,894.64 and 266,842.40 is: 399,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,597.92 : 998,894.64 = 266,842.40 : x
  2. Step 2: Convert to fraction form
    666,597.92/998,894.64 = 266,842.40/x
  3. Step 3: Cross multiply
    666,597.92x = 998,894.64 × 266,842.40
  4. Step 4: Simplify right side
    666,597.92x = 266,547,443,084.74
  5. Step 5: Solve for x
    x = 266,547,443,084.74/666,597.92
  6. Step 6: Final answer
    x = 399,862.40

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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.