Home / 1,358,849.76-2,038,589.28-399,319.98

Finding the Fourth Proportional to 1,358,849.76, 2,038,589.28 and 399,319.98

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Solution

The fourth proportional to 1,358,849.76, 2,038,589.28 and 399,319.98 is: 599,072.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,849.76 : 2,038,589.28 = 399,319.98 : x
  2. Step 2: Convert to fraction form
    1,358,849.76/2,038,589.28 = 399,319.98/x
  3. Step 3: Cross multiply
    1,358,849.76x = 2,038,589.28 × 399,319.98
  4. Step 4: Simplify right side
    1,358,849.76x = 814,049,430,517.81
  5. Step 5: Solve for x
    x = 814,049,430,517.81/1,358,849.76
  6. Step 6: Final answer
    x = 599,072.43

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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.