Home / 678,320.60-1,017,502.56-341,177.13

Finding the Fourth Proportional to 678,320.60, 1,017,502.56 and 341,177.13

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Solution

The fourth proportional to 678,320.60, 1,017,502.56 and 341,177.13 is: 511,776.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,320.60 : 1,017,502.56 = 341,177.13 : x
  2. Step 2: Convert to fraction form
    678,320.60/1,017,502.56 = 341,177.13/x
  3. Step 3: Cross multiply
    678,320.60x = 1,017,502.56 × 341,177.13
  4. Step 4: Simplify right side
    678,320.60x = 347,148,603,188.45
  5. Step 5: Solve for x
    x = 347,148,603,188.45/678,320.60
  6. Step 6: Final answer
    x = 511,776.59

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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.