Home / 571,220.57-855,988.52-318,152.45

Finding the Fourth Proportional to 571,220.57, 855,988.52 and 318,152.45

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Solution

The fourth proportional to 571,220.57, 855,988.52 and 318,152.45 is: 476,759.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,220.57 : 855,988.52 = 318,152.45 : x
  2. Step 2: Convert to fraction form
    571,220.57/855,988.52 = 318,152.45/x
  3. Step 3: Cross multiply
    571,220.57x = 855,988.52 × 318,152.45
  4. Step 4: Simplify right side
    571,220.57x = 272,334,838,939.17
  5. Step 5: Solve for x
    x = 272,334,838,939.17/571,220.57
  6. Step 6: Final answer
    x = 476,759.51

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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.