Home / 678,373.70-1,017,265.30-341,203.91

Finding the Fourth Proportional to 678,373.70, 1,017,265.30 and 341,203.91

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Solution

The fourth proportional to 678,373.70, 1,017,265.30 and 341,203.91 is: 511,657.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,373.70 : 1,017,265.30 = 341,203.91 : x
  2. Step 2: Convert to fraction form
    678,373.70/1,017,265.30 = 341,203.91/x
  3. Step 3: Cross multiply
    678,373.70x = 1,017,265.30 × 341,203.91
  4. Step 4: Simplify right side
    678,373.70x = 347,094,897,867.32
  5. Step 5: Solve for x
    x = 347,094,897,867.32/678,373.70
  6. Step 6: Final answer
    x = 511,657.36

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1.5x scale

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.