Home / 678,373.20-1,017,264.56-341,203.41

Finding the Fourth Proportional to 678,373.20, 1,017,264.56 and 341,203.41

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Solution

The fourth proportional to 678,373.20, 1,017,264.56 and 341,203.41 is: 511,656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,373.20 : 1,017,264.56 = 341,203.41 : x
  2. Step 2: Convert to fraction form
    678,373.20/1,017,264.56 = 341,203.41/x
  3. Step 3: Cross multiply
    678,373.20x = 1,017,264.56 × 341,203.41
  4. Step 4: Simplify right side
    678,373.20x = 347,094,135,038.13
  5. Step 5: Solve for x
    x = 347,094,135,038.13/678,373.20
  6. Step 6: Final answer
    x = 511,656.61

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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.