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Finding the Fourth Proportional to 606,781.44, 909,642.24 and 306,869.76

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Solution

The fourth proportional to 606,781.44, 909,642.24 and 306,869.76 is: 460,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,781.44 : 909,642.24 = 306,869.76 : x
  2. Step 2: Convert to fraction form
    606,781.44/909,642.24 = 306,869.76/x
  3. Step 3: Cross multiply
    606,781.44x = 909,642.24 × 306,869.76
  4. Step 4: Simplify right side
    606,781.44x = 279,141,695,874.66
  5. Step 5: Solve for x
    x = 279,141,695,874.66/606,781.44
  6. Step 6: Final answer
    x = 460,036.64

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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.