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Finding the Fourth Proportional to 436,013.48, 654,013.70 and 120,463.40

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Solution

The fourth proportional to 436,013.48, 654,013.70 and 120,463.40 is: 180,693.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,013.48 : 654,013.70 = 120,463.40 : x
  2. Step 2: Convert to fraction form
    436,013.48/654,013.70 = 120,463.40/x
  3. Step 3: Cross multiply
    436,013.48x = 654,013.70 × 120,463.40
  4. Step 4: Simplify right side
    436,013.48x = 78,784,713,948.58
  5. Step 5: Solve for x
    x = 78,784,713,948.58/436,013.48
  6. Step 6: Final answer
    x = 180,693.30

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1.5x scale

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.