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Finding the Fourth Proportional to 425,854, 637,452.32 and 313,660.88

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Solution

The fourth proportional to 425,854, 637,452.32 and 313,660.88 is: 469,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,854 : 637,452.32 = 313,660.88 : x
  2. Step 2: Convert to fraction form
    425,854/637,452.32 = 313,660.88/x
  3. Step 3: Cross multiply
    425,854x = 637,452.32 × 313,660.88
  4. Step 4: Simplify right side
    425,854x = 199,943,855,649.24
  5. Step 5: Solve for x
    x = 199,943,855,649.24/425,854
  6. Step 6: Final answer
    x = 469,512.69

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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.