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Finding the Fourth Proportional to 612,080.96, 843,781.52 and 427,747.23

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Solution

The fourth proportional to 612,080.96, 843,781.52 and 427,747.23 is: 589,669.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,080.96 : 843,781.52 = 427,747.23 : x
  2. Step 2: Convert to fraction form
    612,080.96/843,781.52 = 427,747.23/x
  3. Step 3: Cross multiply
    612,080.96x = 843,781.52 × 427,747.23
  4. Step 4: Simplify right side
    612,080.96x = 360,925,208,974.56
  5. Step 5: Solve for x
    x = 360,925,208,974.56/612,080.96
  6. Step 6: Final answer
    x = 589,669.07

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1.5x scale

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.