Home / 677,546.20-1,016,319.30-425,603.80

Finding the Fourth Proportional to 677,546.20, 1,016,319.30 and 425,603.80

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Solution

The fourth proportional to 677,546.20, 1,016,319.30 and 425,603.80 is: 638,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,546.20 : 1,016,319.30 = 425,603.80 : x
  2. Step 2: Convert to fraction form
    677,546.20/1,016,319.30 = 425,603.80/x
  3. Step 3: Cross multiply
    677,546.20x = 1,016,319.30 × 425,603.80
  4. Step 4: Simplify right side
    677,546.20x = 432,549,356,093.34
  5. Step 5: Solve for x
    x = 432,549,356,093.34/677,546.20
  6. Step 6: Final answer
    x = 638,405.70

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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.