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Finding the Fourth Proportional to 520,079.10, 779,243.85 and 444,846.30

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Solution

The fourth proportional to 520,079.10, 779,243.85 and 444,846.30 is: 666,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,079.10 : 779,243.85 = 444,846.30 : x
  2. Step 2: Convert to fraction form
    520,079.10/779,243.85 = 444,846.30/x
  3. Step 3: Cross multiply
    520,079.10x = 779,243.85 × 444,846.30
  4. Step 4: Simplify right side
    520,079.10x = 346,643,743,470.26
  5. Step 5: Solve for x
    x = 346,643,743,470.26/520,079.10
  6. Step 6: Final answer
    x = 666,521.20

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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.