Home / 1,391,435.06-2,087,122.85-380,557.04

Finding the Fourth Proportional to 1,391,435.06, 2,087,122.85 and 380,557.04

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Solution

The fourth proportional to 1,391,435.06, 2,087,122.85 and 380,557.04 is: 570,827.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,435.06 : 2,087,122.85 = 380,557.04 : x
  2. Step 2: Convert to fraction form
    1,391,435.06/2,087,122.85 = 380,557.04/x
  3. Step 3: Cross multiply
    1,391,435.06x = 2,087,122.85 × 380,557.04
  4. Step 4: Simplify right side
    1,391,435.06x = 794,269,283,001.05
  5. Step 5: Solve for x
    x = 794,269,283,001.05/1,391,435.06
  6. Step 6: Final answer
    x = 570,827.42

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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.