Home / 1,343,349.20-2,015,023.80-918,196.40

Finding the Fourth Proportional to 1,343,349.20, 2,015,023.80 and 918,196.40

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Solution

The fourth proportional to 1,343,349.20, 2,015,023.80 and 918,196.40 is: 1,377,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,349.20 : 2,015,023.80 = 918,196.40 : x
  2. Step 2: Convert to fraction form
    1,343,349.20/2,015,023.80 = 918,196.40/x
  3. Step 3: Cross multiply
    1,343,349.20x = 2,015,023.80 × 918,196.40
  4. Step 4: Simplify right side
    1,343,349.20x = 1,850,187,599,074.32
  5. Step 5: Solve for x
    x = 1,850,187,599,074.32/1,343,349.20
  6. Step 6: Final answer
    x = 1,377,294.60

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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.