Home / 1,385,588.80-2,078,383.20-907,291.90

Finding the Fourth Proportional to 1,385,588.80, 2,078,383.20 and 907,291.90

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Solution

The fourth proportional to 1,385,588.80, 2,078,383.20 and 907,291.90 is: 1,360,937.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,588.80 : 2,078,383.20 = 907,291.90 : x
  2. Step 2: Convert to fraction form
    1,385,588.80/2,078,383.20 = 907,291.90/x
  3. Step 3: Cross multiply
    1,385,588.80x = 2,078,383.20 × 907,291.90
  4. Step 4: Simplify right side
    1,385,588.80x = 1,885,700,242,456.08
  5. Step 5: Solve for x
    x = 1,885,700,242,456.08/1,385,588.80
  6. Step 6: Final answer
    x = 1,360,937.85

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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.