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Finding the Fourth Proportional to 529,638.80, 794,458.20 and 490,758.80

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Solution

The fourth proportional to 529,638.80, 794,458.20 and 490,758.80 is: 736,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,638.80 : 794,458.20 = 490,758.80 : x
  2. Step 2: Convert to fraction form
    529,638.80/794,458.20 = 490,758.80/x
  3. Step 3: Cross multiply
    529,638.80x = 794,458.20 × 490,758.80
  4. Step 4: Simplify right side
    529,638.80x = 389,887,352,882.16
  5. Step 5: Solve for x
    x = 389,887,352,882.16/529,638.80
  6. Step 6: Final answer
    x = 736,138.20

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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.