Home / 559,911.20-772,644.16-318,160.22

Finding the Fourth Proportional to 559,911.20, 772,644.16 and 318,160.22

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Solution

The fourth proportional to 559,911.20, 772,644.16 and 318,160.22 is: 439,042.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,911.20 : 772,644.16 = 318,160.22 : x
  2. Step 2: Convert to fraction form
    559,911.20/772,644.16 = 318,160.22/x
  3. Step 3: Cross multiply
    559,911.20x = 772,644.16 × 318,160.22
  4. Step 4: Simplify right side
    559,911.20x = 245,824,635,927.32
  5. Step 5: Solve for x
    x = 245,824,635,927.32/559,911.20
  6. Step 6: Final answer
    x = 439,042.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.