Home / 571,085.78-856,630.65-144,621.49

Finding the Fourth Proportional to 571,085.78, 856,630.65 and 144,621.49

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Solution

The fourth proportional to 571,085.78, 856,630.65 and 144,621.49 is: 216,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,085.78 : 856,630.65 = 144,621.49 : x
  2. Step 2: Convert to fraction form
    571,085.78/856,630.65 = 144,621.49/x
  3. Step 3: Cross multiply
    571,085.78x = 856,630.65 × 144,621.49
  4. Step 4: Simplify right side
    571,085.78x = 123,887,203,124.25
  5. Step 5: Solve for x
    x = 123,887,203,124.25/571,085.78
  6. Step 6: Final answer
    x = 216,932.74

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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.