Home / 804,745.80-1,207,118.70-272,284.20

Finding the Fourth Proportional to 804,745.80, 1,207,118.70 and 272,284.20

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Solution

The fourth proportional to 804,745.80, 1,207,118.70 and 272,284.20 is: 408,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,745.80 : 1,207,118.70 = 272,284.20 : x
  2. Step 2: Convert to fraction form
    804,745.80/1,207,118.70 = 272,284.20/x
  3. Step 3: Cross multiply
    804,745.80x = 1,207,118.70 × 272,284.20
  4. Step 4: Simplify right side
    804,745.80x = 328,679,349,534.54
  5. Step 5: Solve for x
    x = 328,679,349,534.54/804,745.80
  6. Step 6: Final answer
    x = 408,426.30

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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.