Home / 653,023.77-979,613.55-315,822.11

Finding the Fourth Proportional to 653,023.77, 979,613.55 and 315,822.11

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Solution

The fourth proportional to 653,023.77, 979,613.55 and 315,822.11 is: 473,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,023.77 : 979,613.55 = 315,822.11 : x
  2. Step 2: Convert to fraction form
    653,023.77/979,613.55 = 315,822.11/x
  3. Step 3: Cross multiply
    653,023.77x = 979,613.55 × 315,822.11
  4. Step 4: Simplify right side
    653,023.77x = 309,383,623,203.47
  5. Step 5: Solve for x
    x = 309,383,623,203.47/653,023.77
  6. Step 6: Final answer
    x = 473,770.85

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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.