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Finding the Fourth Proportional to 606,079.20, 909,032.40 and 206,738.40

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Solution

The fourth proportional to 606,079.20, 909,032.40 and 206,738.40 is: 310,078.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,079.20 : 909,032.40 = 206,738.40 : x
  2. Step 2: Convert to fraction form
    606,079.20/909,032.40 = 206,738.40/x
  3. Step 3: Cross multiply
    606,079.20x = 909,032.40 × 206,738.40
  4. Step 4: Simplify right side
    606,079.20x = 187,931,903,924.16
  5. Step 5: Solve for x
    x = 187,931,903,924.16/606,079.20
  6. Step 6: Final answer
    x = 310,078.13

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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.