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Finding the Fourth Proportional to 826,480.13, 1,140,480 and 463,833.96

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Solution

The fourth proportional to 826,480.13, 1,140,480 and 463,833.96 is: 640,055.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,480.13 : 1,140,480 = 463,833.96 : x
  2. Step 2: Convert to fraction form
    826,480.13/1,140,480 = 463,833.96/x
  3. Step 3: Cross multiply
    826,480.13x = 1,140,480 × 463,833.96
  4. Step 4: Simplify right side
    826,480.13x = 528,993,356,839.20
  5. Step 5: Solve for x
    x = 528,993,356,839.20/826,480.13
  6. Step 6: Final answer
    x = 640,055.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.