Home / 566,020.80-781,080.48-311,365.44

Finding the Fourth Proportional to 566,020.80, 781,080.48 and 311,365.44

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Solution

The fourth proportional to 566,020.80, 781,080.48 and 311,365.44 is: 429,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,020.80 : 781,080.48 = 311,365.44 : x
  2. Step 2: Convert to fraction form
    566,020.80/781,080.48 = 311,365.44/x
  3. Step 3: Cross multiply
    566,020.80x = 781,080.48 × 311,365.44
  4. Step 4: Simplify right side
    566,020.80x = 243,201,467,330.61
  5. Step 5: Solve for x
    x = 243,201,467,330.61/566,020.80
  6. Step 6: Final answer
    x = 429,668.78

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1.5x scale

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.