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Finding the Fourth Proportional to 606,123.20, 909,098.40 and 206,782.40

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Solution

The fourth proportional to 606,123.20, 909,098.40 and 206,782.40 is: 310,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,123.20 : 909,098.40 = 206,782.40 : x
  2. Step 2: Convert to fraction form
    606,123.20/909,098.40 = 206,782.40/x
  3. Step 3: Cross multiply
    606,123.20x = 909,098.40 × 206,782.40
  4. Step 4: Simplify right side
    606,123.20x = 187,985,548,988.16
  5. Step 5: Solve for x
    x = 187,985,548,988.16/606,123.20
  6. Step 6: Final answer
    x = 310,144.12

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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.