Home / 1,223,053.38-1,687,756.77-679,223.70

Finding the Fourth Proportional to 1,223,053.38, 1,687,756.77 and 679,223.70

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Solution

The fourth proportional to 1,223,053.38, 1,687,756.77 and 679,223.70 is: 937,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,053.38 : 1,687,756.77 = 679,223.70 : x
  2. Step 2: Convert to fraction form
    1,223,053.38/1,687,756.77 = 679,223.70/x
  3. Step 3: Cross multiply
    1,223,053.38x = 1,687,756.77 × 679,223.70
  4. Step 4: Simplify right side
    1,223,053.38x = 1,146,364,398,019.45
  5. Step 5: Solve for x
    x = 1,146,364,398,019.45/1,223,053.38
  6. Step 6: Final answer
    x = 937,297.11

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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.