Home / 406,666.04-561,218.06-225,378

Finding the Fourth Proportional to 406,666.04, 561,218.06 and 225,378

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Solution

The fourth proportional to 406,666.04, 561,218.06 and 225,378 is: 311,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,666.04 : 561,218.06 = 225,378 : x
  2. Step 2: Convert to fraction form
    406,666.04/561,218.06 = 225,378/x
  3. Step 3: Cross multiply
    406,666.04x = 561,218.06 × 225,378
  4. Step 4: Simplify right side
    406,666.04x = 126,486,204,490.13
  5. Step 5: Solve for x
    x = 126,486,204,490.13/406,666.04
  6. Step 6: Final answer
    x = 311,032.13

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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.