Home / 1,389,377.66-2,083,774.86-391,872.38

Finding the Fourth Proportional to 1,389,377.66, 2,083,774.86 and 391,872.38

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Solution

The fourth proportional to 1,389,377.66, 2,083,774.86 and 391,872.38 is: 587,726.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,377.66 : 2,083,774.86 = 391,872.38 : x
  2. Step 2: Convert to fraction form
    1,389,377.66/2,083,774.86 = 391,872.38/x
  3. Step 3: Cross multiply
    1,389,377.66x = 2,083,774.86 × 391,872.38
  4. Step 4: Simplify right side
    1,389,377.66x = 816,573,803,353.49
  5. Step 5: Solve for x
    x = 816,573,803,353.49/1,389,377.66
  6. Step 6: Final answer
    x = 587,726.31

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1.5x scale

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.