Home / 923,921.80-1,386,629.01-391,816.18

Finding the Fourth Proportional to 923,921.80, 1,386,629.01 and 391,816.18

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Solution

The fourth proportional to 923,921.80, 1,386,629.01 and 391,816.18 is: 588,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,921.80 : 1,386,629.01 = 391,816.18 : x
  2. Step 2: Convert to fraction form
    923,921.80/1,386,629.01 = 391,816.18/x
  3. Step 3: Cross multiply
    923,921.80x = 1,386,629.01 × 391,816.18
  4. Step 4: Simplify right side
    923,921.80x = 543,303,681,775.38
  5. Step 5: Solve for x
    x = 543,303,681,775.38/923,921.80
  6. Step 6: Final answer
    x = 588,040.76

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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.