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Finding the Fourth Proportional to 389,183.16, 583,774.74 and 300,565.92

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Solution

The fourth proportional to 389,183.16, 583,774.74 and 300,565.92 is: 450,848.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,183.16 : 583,774.74 = 300,565.92 : x
  2. Step 2: Convert to fraction form
    389,183.16/583,774.74 = 300,565.92/x
  3. Step 3: Cross multiply
    389,183.16x = 583,774.74 × 300,565.92
  4. Step 4: Simplify right side
    389,183.16x = 175,462,791,800.86
  5. Step 5: Solve for x
    x = 175,462,791,800.86/389,183.16
  6. Step 6: Final answer
    x = 450,848.88

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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.