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Finding the Fourth Proportional to 651,079.20, 976,910.40 and 295,910.40

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Solution

The fourth proportional to 651,079.20, 976,910.40 and 295,910.40 is: 443,998.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,079.20 : 976,910.40 = 295,910.40 : x
  2. Step 2: Convert to fraction form
    651,079.20/976,910.40 = 295,910.40/x
  3. Step 3: Cross multiply
    651,079.20x = 976,910.40 × 295,910.40
  4. Step 4: Simplify right side
    651,079.20x = 289,077,947,228.16
  5. Step 5: Solve for x
    x = 289,077,947,228.16/651,079.20
  6. Step 6: Final answer
    x = 443,998.13

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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.