Home / 807,247.72-1,209,005.34-779,254.12

Finding the Fourth Proportional to 807,247.72, 1,209,005.34 and 779,254.12

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Solution

The fourth proportional to 807,247.72, 1,209,005.34 and 779,254.12 is: 1,167,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,247.72 : 1,209,005.34 = 779,254.12 : x
  2. Step 2: Convert to fraction form
    807,247.72/1,209,005.34 = 779,254.12/x
  3. Step 3: Cross multiply
    807,247.72x = 1,209,005.34 × 779,254.12
  4. Step 4: Simplify right side
    807,247.72x = 942,122,392,297.00
  5. Step 5: Solve for x
    x = 942,122,392,297.00/807,247.72
  6. Step 6: Final answer
    x = 1,167,079.66

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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.