Home / 406,786.28-561,338.34-227,903.72

Finding the Fourth Proportional to 406,786.28, 561,338.34 and 227,903.72

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Solution

The fourth proportional to 406,786.28, 561,338.34 and 227,903.72 is: 314,492.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,786.28 : 561,338.34 = 227,903.72 : x
  2. Step 2: Convert to fraction form
    406,786.28/561,338.34 = 227,903.72/x
  3. Step 3: Cross multiply
    406,786.28x = 561,338.34 × 227,903.72
  4. Step 4: Simplify right side
    406,786.28x = 127,931,095,864.63
  5. Step 5: Solve for x
    x = 127,931,095,864.63/406,786.28
  6. Step 6: Final answer
    x = 314,492.16

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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.