Home / 1,243,591.72-1,865,390.62-345,081.72

Finding the Fourth Proportional to 1,243,591.72, 1,865,390.62 and 345,081.72

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Solution

The fourth proportional to 1,243,591.72, 1,865,390.62 and 345,081.72 is: 517,623.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,591.72 : 1,865,390.62 = 345,081.72 : x
  2. Step 2: Convert to fraction form
    1,243,591.72/1,865,390.62 = 345,081.72/x
  3. Step 3: Cross multiply
    1,243,591.72x = 1,865,390.62 × 345,081.72
  4. Step 4: Simplify right side
    1,243,591.72x = 643,712,203,621.47
  5. Step 5: Solve for x
    x = 643,712,203,621.47/1,243,591.72
  6. Step 6: Final answer
    x = 517,623.42

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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.