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Finding the Fourth Proportional to 707,538.48, 976,353.84 and 401,621.04

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Solution

The fourth proportional to 707,538.48, 976,353.84 and 401,621.04 is: 554,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,538.48 : 976,353.84 = 401,621.04 : x
  2. Step 2: Convert to fraction form
    707,538.48/976,353.84 = 401,621.04/x
  3. Step 3: Cross multiply
    707,538.48x = 976,353.84 × 401,621.04
  4. Step 4: Simplify right side
    707,538.48x = 392,124,244,628.79
  5. Step 5: Solve for x
    x = 392,124,244,628.79/707,538.48
  6. Step 6: Final answer
    x = 554,209.07

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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.