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Finding the Fourth Proportional to 436,492.64, 654,737.16 and 120,948.64

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Solution

The fourth proportional to 436,492.64, 654,737.16 and 120,948.64 is: 181,422.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,492.64 : 654,737.16 = 120,948.64 : x
  2. Step 2: Convert to fraction form
    436,492.64/654,737.16 = 120,948.64/x
  3. Step 3: Cross multiply
    436,492.64x = 654,737.16 × 120,948.64
  4. Step 4: Simplify right side
    436,492.64x = 79,189,569,059.46
  5. Step 5: Solve for x
    x = 79,189,569,059.46/436,492.64
  6. Step 6: Final answer
    x = 181,422.46

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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.