Home / 1,091,385.23-1,637,001.60-408,142.05

Finding the Fourth Proportional to 1,091,385.23, 1,637,001.60 and 408,142.05

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Solution

The fourth proportional to 1,091,385.23, 1,637,001.60 and 408,142.05 is: 612,184.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,385.23 : 1,637,001.60 = 408,142.05 : x
  2. Step 2: Convert to fraction form
    1,091,385.23/1,637,001.60 = 408,142.05/x
  3. Step 3: Cross multiply
    1,091,385.23x = 1,637,001.60 × 408,142.05
  4. Step 4: Simplify right side
    1,091,385.23x = 668,129,188,877.28
  5. Step 5: Solve for x
    x = 668,129,188,877.28/1,091,385.23
  6. Step 6: Final answer
    x = 612,184.56

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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.