Home / 406,901.22-561,412.40-243,491.96

Finding the Fourth Proportional to 406,901.22, 561,412.40 and 243,491.96

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Solution

The fourth proportional to 406,901.22, 561,412.40 and 243,491.96 is: 335,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,901.22 : 561,412.40 = 243,491.96 : x
  2. Step 2: Convert to fraction form
    406,901.22/561,412.40 = 243,491.96/x
  3. Step 3: Cross multiply
    406,901.22x = 561,412.40 × 243,491.96
  4. Step 4: Simplify right side
    406,901.22x = 136,699,401,619.78
  5. Step 5: Solve for x
    x = 136,699,401,619.78/406,901.22
  6. Step 6: Final answer
    x = 335,952.30

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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.