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Finding the Fourth Proportional to 407,327.59, 610,991.34 and 126,866.71

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Solution

The fourth proportional to 407,327.59, 610,991.34 and 126,866.71 is: 190,300.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,327.59 : 610,991.34 = 126,866.71 : x
  2. Step 2: Convert to fraction form
    407,327.59/610,991.34 = 126,866.71/x
  3. Step 3: Cross multiply
    407,327.59x = 610,991.34 × 126,866.71
  4. Step 4: Simplify right side
    407,327.59x = 77,514,461,144.29
  5. Step 5: Solve for x
    x = 77,514,461,144.29/407,327.59
  6. Step 6: Final answer
    x = 190,300.05

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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.