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Finding the Fourth Proportional to 389,182.66, 583,773.99 and 300,565.42

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Solution

The fourth proportional to 389,182.66, 583,773.99 and 300,565.42 is: 450,848.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,182.66 : 583,773.99 = 300,565.42 : x
  2. Step 2: Convert to fraction form
    389,182.66/583,773.99 = 300,565.42/x
  3. Step 3: Cross multiply
    389,182.66x = 583,773.99 × 300,565.42
  4. Step 4: Simplify right side
    389,182.66x = 175,462,274,489.43
  5. Step 5: Solve for x
    x = 175,462,274,489.43/389,182.66
  6. Step 6: Final answer
    x = 450,848.13

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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.