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Finding the Fourth Proportional to 684,682.40, 944,862.52 and 374,588.88

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Solution

The fourth proportional to 684,682.40, 944,862.52 and 374,588.88 is: 516,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,682.40 : 944,862.52 = 374,588.88 : x
  2. Step 2: Convert to fraction form
    684,682.40/944,862.52 = 374,588.88/x
  3. Step 3: Cross multiply
    684,682.40x = 944,862.52 × 374,588.88
  4. Step 4: Simplify right side
    684,682.40x = 353,934,993,120.78
  5. Step 5: Solve for x
    x = 353,934,993,120.78/684,682.40
  6. Step 6: Final answer
    x = 516,933.10

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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.