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Finding the Fourth Proportional to 571,201.40, 856,218.90 and 334,422.20

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Solution

The fourth proportional to 571,201.40, 856,218.90 and 334,422.20 is: 501,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,201.40 : 856,218.90 = 334,422.20 : x
  2. Step 2: Convert to fraction form
    571,201.40/856,218.90 = 334,422.20/x
  3. Step 3: Cross multiply
    571,201.40x = 856,218.90 × 334,422.20
  4. Step 4: Simplify right side
    571,201.40x = 286,338,608,219.58
  5. Step 5: Solve for x
    x = 286,338,608,219.58/571,201.40
  6. Step 6: Final answer
    x = 501,291.85

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Double scale
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1.5x scale

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.