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Finding the Fourth Proportional to 978,822.04, 1,349,995.24 and 808,760.92

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Solution

The fourth proportional to 978,822.04, 1,349,995.24 and 808,760.92 is: 1,115,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,822.04 : 1,349,995.24 = 808,760.92 : x
  2. Step 2: Convert to fraction form
    978,822.04/1,349,995.24 = 808,760.92/x
  3. Step 3: Cross multiply
    978,822.04x = 1,349,995.24 × 808,760.92
  4. Step 4: Simplify right side
    978,822.04x = 1,091,823,392,298.02
  5. Step 5: Solve for x
    x = 1,091,823,392,298.02/978,822.04
  6. Step 6: Final answer
    x = 1,115,446.27

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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.