Home / 820,099.36-1,130,731.64-674,395.96

Finding the Fourth Proportional to 820,099.36, 1,130,731.64 and 674,395.96

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Solution

The fourth proportional to 820,099.36, 1,130,731.64 and 674,395.96 is: 929,839.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,099.36 : 1,130,731.64 = 674,395.96 : x
  2. Step 2: Convert to fraction form
    820,099.36/1,130,731.64 = 674,395.96/x
  3. Step 3: Cross multiply
    820,099.36x = 1,130,731.64 × 674,395.96
  4. Step 4: Simplify right side
    820,099.36x = 762,560,849,860.17
  5. Step 5: Solve for x
    x = 762,560,849,860.17/820,099.36
  6. Step 6: Final answer
    x = 929,839.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.