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Finding the Fourth Proportional to 426,373.59, 639,894.51 and 297,451.46

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Solution

The fourth proportional to 426,373.59, 639,894.51 and 297,451.46 is: 446,410.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,373.59 : 639,894.51 = 297,451.46 : x
  2. Step 2: Convert to fraction form
    426,373.59/639,894.51 = 297,451.46/x
  3. Step 3: Cross multiply
    426,373.59x = 639,894.51 × 297,451.46
  4. Step 4: Simplify right side
    426,373.59x = 190,337,556,245.49
  5. Step 5: Solve for x
    x = 190,337,556,245.49/426,373.59
  6. Step 6: Final answer
    x = 446,410.29

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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.