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Finding the Fourth Proportional to 523,139.42, 722,149.36 and 353,603.18

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Solution

The fourth proportional to 523,139.42, 722,149.36 and 353,603.18 is: 488,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,139.42 : 722,149.36 = 353,603.18 : x
  2. Step 2: Convert to fraction form
    523,139.42/722,149.36 = 353,603.18/x
  3. Step 3: Cross multiply
    523,139.42x = 722,149.36 × 353,603.18
  4. Step 4: Simplify right side
    523,139.42x = 255,354,310,130.97
  5. Step 5: Solve for x
    x = 255,354,310,130.97/523,139.42
  6. Step 6: Final answer
    x = 488,119.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.