Home / 783,132.80-1,174,699.20-689,820.80

Finding the Fourth Proportional to 783,132.80, 1,174,699.20 and 689,820.80

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Solution

The fourth proportional to 783,132.80, 1,174,699.20 and 689,820.80 is: 1,034,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,132.80 : 1,174,699.20 = 689,820.80 : x
  2. Step 2: Convert to fraction form
    783,132.80/1,174,699.20 = 689,820.80/x
  3. Step 3: Cross multiply
    783,132.80x = 1,174,699.20 × 689,820.80
  4. Step 4: Simplify right side
    783,132.80x = 810,331,941,903.36
  5. Step 5: Solve for x
    x = 810,331,941,903.36/783,132.80
  6. Step 6: Final answer
    x = 1,034,731.20

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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.