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Finding the Fourth Proportional to 437,856.48, 655,742.16 and 279,594.72

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Solution

The fourth proportional to 437,856.48, 655,742.16 and 279,594.72 is: 418,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,856.48 : 655,742.16 = 279,594.72 : x
  2. Step 2: Convert to fraction form
    437,856.48/655,742.16 = 279,594.72/x
  3. Step 3: Cross multiply
    437,856.48x = 655,742.16 × 279,594.72
  4. Step 4: Simplify right side
    437,856.48x = 183,342,045,617.40
  5. Step 5: Solve for x
    x = 183,342,045,617.40/437,856.48
  6. Step 6: Final answer
    x = 418,726.35

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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.