Home / 1,543,446.93-2,315,257.87-478,640.37

Finding the Fourth Proportional to 1,543,446.93, 2,315,257.87 and 478,640.37

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Solution

The fourth proportional to 1,543,446.93, 2,315,257.87 and 478,640.37 is: 717,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,446.93 : 2,315,257.87 = 478,640.37 : x
  2. Step 2: Convert to fraction form
    1,543,446.93/2,315,257.87 = 478,640.37/x
  3. Step 3: Cross multiply
    1,543,446.93x = 2,315,257.87 × 478,640.37
  4. Step 4: Simplify right side
    1,543,446.93x = 1,108,175,883,542.21
  5. Step 5: Solve for x
    x = 1,108,175,883,542.21/1,543,446.93
  6. Step 6: Final answer
    x = 717,987.68

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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.