Home / 755,409.20-1,133,113.80-256,773.20

Finding the Fourth Proportional to 755,409.20, 1,133,113.80 and 256,773.20

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Solution

The fourth proportional to 755,409.20, 1,133,113.80 and 256,773.20 is: 385,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,409.20 : 1,133,113.80 = 256,773.20 : x
  2. Step 2: Convert to fraction form
    755,409.20/1,133,113.80 = 256,773.20/x
  3. Step 3: Cross multiply
    755,409.20x = 1,133,113.80 × 256,773.20
  4. Step 4: Simplify right side
    755,409.20x = 290,953,256,390.16
  5. Step 5: Solve for x
    x = 290,953,256,390.16/755,409.20
  6. Step 6: Final answer
    x = 385,159.80

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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.