Home / 709,519.20-1,062,205.20-688,783.20

Finding the Fourth Proportional to 709,519.20, 1,062,205.20 and 688,783.20

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Solution

The fourth proportional to 709,519.20, 1,062,205.20 and 688,783.20 is: 1,031,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,519.20 : 1,062,205.20 = 688,783.20 : x
  2. Step 2: Convert to fraction form
    709,519.20/1,062,205.20 = 688,783.20/x
  3. Step 3: Cross multiply
    709,519.20x = 1,062,205.20 × 688,783.20
  4. Step 4: Simplify right side
    709,519.20x = 731,629,096,712.64
  5. Step 5: Solve for x
    x = 731,629,096,712.64/709,519.20
  6. Step 6: Final answer
    x = 1,031,161.80

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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.