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Finding the Fourth Proportional to 611,439.72, 844,114.40 and 471,432.51

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Solution

The fourth proportional to 611,439.72, 844,114.40 and 471,432.51 is: 650,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,439.72 : 844,114.40 = 471,432.51 : x
  2. Step 2: Convert to fraction form
    611,439.72/844,114.40 = 471,432.51/x
  3. Step 3: Cross multiply
    611,439.72x = 844,114.40 × 471,432.51
  4. Step 4: Simplify right side
    611,439.72x = 397,942,974,092.78
  5. Step 5: Solve for x
    x = 397,942,974,092.78/611,439.72
  6. Step 6: Final answer
    x = 650,829.45

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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.