Home / 1,389,373.16-2,083,768.13-391,867.88

Finding the Fourth Proportional to 1,389,373.16, 2,083,768.13 and 391,867.88

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Solution

The fourth proportional to 1,389,373.16, 2,083,768.13 and 391,867.88 is: 587,719.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,373.16 : 2,083,768.13 = 391,867.88 : x
  2. Step 2: Convert to fraction form
    1,389,373.16/2,083,768.13 = 391,867.88/x
  3. Step 3: Cross multiply
    1,389,373.16x = 2,083,768.13 × 391,867.88
  4. Step 4: Simplify right side
    1,389,373.16x = 816,561,790,075.49
  5. Step 5: Solve for x
    x = 816,561,790,075.49/1,389,373.16
  6. Step 6: Final answer
    x = 587,719.57

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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.