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Finding the Fourth Proportional to 611,477.40, 843,244.92 and 475,271.04

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Solution

The fourth proportional to 611,477.40, 843,244.92 and 475,271.04 is: 655,412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,477.40 : 843,244.92 = 475,271.04 : x
  2. Step 2: Convert to fraction form
    611,477.40/843,244.92 = 475,271.04/x
  3. Step 3: Cross multiply
    611,477.40x = 843,244.92 × 475,271.04
  4. Step 4: Simplify right side
    611,477.40x = 400,769,890,103.12
  5. Step 5: Solve for x
    x = 400,769,890,103.12/611,477.40
  6. Step 6: Final answer
    x = 655,412.43

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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.