Home / 706,876.80-1,060,315.20-426,940.80

Finding the Fourth Proportional to 706,876.80, 1,060,315.20 and 426,940.80

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Solution

The fourth proportional to 706,876.80, 1,060,315.20 and 426,940.80 is: 640,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,876.80 : 1,060,315.20 = 426,940.80 : x
  2. Step 2: Convert to fraction form
    706,876.80/1,060,315.20 = 426,940.80/x
  3. Step 3: Cross multiply
    706,876.80x = 1,060,315.20 × 426,940.80
  4. Step 4: Simplify right side
    706,876.80x = 452,691,819,740.16
  5. Step 5: Solve for x
    x = 452,691,819,740.16/706,876.80
  6. Step 6: Final answer
    x = 640,411.20

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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.