Home / 744,816.50-1,027,838.13-405,278.90

Finding the Fourth Proportional to 744,816.50, 1,027,838.13 and 405,278.90

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Solution

The fourth proportional to 744,816.50, 1,027,838.13 and 405,278.90 is: 559,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,816.50 : 1,027,838.13 = 405,278.90 : x
  2. Step 2: Convert to fraction form
    744,816.50/1,027,838.13 = 405,278.90/x
  3. Step 3: Cross multiply
    744,816.50x = 1,027,838.13 × 405,278.90
  4. Step 4: Simplify right side
    744,816.50x = 416,561,106,704.46
  5. Step 5: Solve for x
    x = 416,561,106,704.46/744,816.50
  6. Step 6: Final answer
    x = 559,280.18

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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.