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Finding the Fourth Proportional to 665,479.95, 998,387.88 and 185,707.35

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Solution

The fourth proportional to 665,479.95, 998,387.88 and 185,707.35 is: 278,607.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,479.95 : 998,387.88 = 185,707.35 : x
  2. Step 2: Convert to fraction form
    665,479.95/998,387.88 = 185,707.35/x
  3. Step 3: Cross multiply
    665,479.95x = 998,387.88 × 185,707.35
  4. Step 4: Simplify right side
    665,479.95x = 185,407,967,466.92
  5. Step 5: Solve for x
    x = 185,407,967,466.92/665,479.95
  6. Step 6: Final answer
    x = 278,607.89

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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.