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Finding the Fourth Proportional to 665,574.76, 997,642.14 and 265,776.04

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Solution

The fourth proportional to 665,574.76, 997,642.14 and 265,776.04 is: 398,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,574.76 : 997,642.14 = 265,776.04 : x
  2. Step 2: Convert to fraction form
    665,574.76/997,642.14 = 265,776.04/x
  3. Step 3: Cross multiply
    665,574.76x = 997,642.14 × 265,776.04
  4. Step 4: Simplify right side
    665,574.76x = 265,149,377,306.33
  5. Step 5: Solve for x
    x = 265,149,377,306.33/665,574.76
  6. Step 6: Final answer
    x = 398,376.55

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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.