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Finding the Fourth Proportional to 684,255.88, 944,258.49 and 378,345.16

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Solution

The fourth proportional to 684,255.88, 944,258.49 and 378,345.16 is: 522,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,255.88 : 944,258.49 = 378,345.16 : x
  2. Step 2: Convert to fraction form
    684,255.88/944,258.49 = 378,345.16/x
  3. Step 3: Cross multiply
    684,255.88x = 944,258.49 × 378,345.16
  4. Step 4: Simplify right side
    684,255.88x = 357,255,629,480.41
  5. Step 5: Solve for x
    x = 357,255,629,480.41/684,255.88
  6. Step 6: Final answer
    x = 522,108.23

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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.