Home / 779,822.80-1,167,401.40-686,510.80

Finding the Fourth Proportional to 779,822.80, 1,167,401.40 and 686,510.80

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Solution

The fourth proportional to 779,822.80, 1,167,401.40 and 686,510.80 is: 1,027,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,822.80 : 1,167,401.40 = 686,510.80 : x
  2. Step 2: Convert to fraction form
    779,822.80/1,167,401.40 = 686,510.80/x
  3. Step 3: Cross multiply
    779,822.80x = 1,167,401.40 × 686,510.80
  4. Step 4: Simplify right side
    779,822.80x = 801,433,669,035.12
  5. Step 5: Solve for x
    x = 801,433,669,035.12/779,822.80
  6. Step 6: Final answer
    x = 1,027,712.54

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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.