Home / 756,207.20-1,134,310.80-686,223.20

Finding the Fourth Proportional to 756,207.20, 1,134,310.80 and 686,223.20

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Solution

The fourth proportional to 756,207.20, 1,134,310.80 and 686,223.20 is: 1,029,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,207.20 : 1,134,310.80 = 686,223.20 : x
  2. Step 2: Convert to fraction form
    756,207.20/1,134,310.80 = 686,223.20/x
  3. Step 3: Cross multiply
    756,207.20x = 1,134,310.80 × 686,223.20
  4. Step 4: Simplify right side
    756,207.20x = 778,390,386,970.56
  5. Step 5: Solve for x
    x = 778,390,386,970.56/756,207.20
  6. Step 6: Final answer
    x = 1,029,334.80

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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.