Home / 1,243,647.72-1,865,262.89-345,180.74

Finding the Fourth Proportional to 1,243,647.72, 1,865,262.89 and 345,180.74

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Solution

The fourth proportional to 1,243,647.72, 1,865,262.89 and 345,180.74 is: 517,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,647.72 : 1,865,262.89 = 345,180.74 : x
  2. Step 2: Convert to fraction form
    1,243,647.72/1,865,262.89 = 345,180.74/x
  3. Step 3: Cross multiply
    1,243,647.72x = 1,865,262.89 × 345,180.74
  4. Step 4: Simplify right side
    1,243,647.72x = 643,852,813,612.52
  5. Step 5: Solve for x
    x = 643,852,813,612.52/1,243,647.72
  6. Step 6: Final answer
    x = 517,713.18

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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.