Home / 520,029.90-779,656.05-220,265.10

Finding the Fourth Proportional to 520,029.90, 779,656.05 and 220,265.10

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Solution

The fourth proportional to 520,029.90, 779,656.05 and 220,265.10 is: 330,232.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,029.90 : 779,656.05 = 220,265.10 : x
  2. Step 2: Convert to fraction form
    520,029.90/779,656.05 = 220,265.10/x
  3. Step 3: Cross multiply
    520,029.90x = 779,656.05 × 220,265.10
  4. Step 4: Simplify right side
    520,029.90x = 171,731,017,818.86
  5. Step 5: Solve for x
    x = 171,731,017,818.86/520,029.90
  6. Step 6: Final answer
    x = 330,232.97

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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.