Home / 406,869.76-561,513.36-225,599.68

Finding the Fourth Proportional to 406,869.76, 561,513.36 and 225,599.68

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Solution

The fourth proportional to 406,869.76, 561,513.36 and 225,599.68 is: 311,345.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,869.76 : 561,513.36 = 225,599.68 : x
  2. Step 2: Convert to fraction form
    406,869.76/561,513.36 = 225,599.68/x
  3. Step 3: Cross multiply
    406,869.76x = 561,513.36 × 225,599.68
  4. Step 4: Simplify right side
    406,869.76x = 126,677,234,331.73
  5. Step 5: Solve for x
    x = 126,677,234,331.73/406,869.76
  6. Step 6: Final answer
    x = 311,345.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.