Home / 1,223,149.66-1,687,900.24-679,320.47

Finding the Fourth Proportional to 1,223,149.66, 1,687,900.24 and 679,320.47

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Solution

The fourth proportional to 1,223,149.66, 1,687,900.24 and 679,320.47 is: 937,436.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,149.66 : 1,687,900.24 = 679,320.47 : x
  2. Step 2: Convert to fraction form
    1,223,149.66/1,687,900.24 = 679,320.47/x
  3. Step 3: Cross multiply
    1,223,149.66x = 1,687,900.24 × 679,320.47
  4. Step 4: Simplify right side
    1,223,149.66x = 1,146,625,184,349.91
  5. Step 5: Solve for x
    x = 1,146,625,184,349.91/1,223,149.66
  6. Step 6: Final answer
    x = 937,436.54

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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.