Home / 478,971.75-660,733.66-297,614.78

Finding the Fourth Proportional to 478,971.75, 660,733.66 and 297,614.78

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Solution

The fourth proportional to 478,971.75, 660,733.66 and 297,614.78 is: 410,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,971.75 : 660,733.66 = 297,614.78 : x
  2. Step 2: Convert to fraction form
    478,971.75/660,733.66 = 297,614.78/x
  3. Step 3: Cross multiply
    478,971.75x = 660,733.66 × 297,614.78
  4. Step 4: Simplify right side
    478,971.75x = 196,644,102,859.50
  5. Step 5: Solve for x
    x = 196,644,102,859.50/478,971.75
  6. Step 6: Final answer
    x = 410,554.70

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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.