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Finding the Fourth Proportional to 612,045.06, 844,660.89 and 343,790.34

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Solution

The fourth proportional to 612,045.06, 844,660.89 and 343,790.34 is: 474,452.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,045.06 : 844,660.89 = 343,790.34 : x
  2. Step 2: Convert to fraction form
    612,045.06/844,660.89 = 343,790.34/x
  3. Step 3: Cross multiply
    612,045.06x = 844,660.89 × 343,790.34
  4. Step 4: Simplify right side
    612,045.06x = 290,386,254,557.80
  5. Step 5: Solve for x
    x = 290,386,254,557.80/612,045.06
  6. Step 6: Final answer
    x = 474,452.41

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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.