Home / 684,789.39-1,026,627.35-285,727.41

Finding the Fourth Proportional to 684,789.39, 1,026,627.35 and 285,727.41

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Solution

The fourth proportional to 684,789.39, 1,026,627.35 and 285,727.41 is: 428,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,789.39 : 1,026,627.35 = 285,727.41 : x
  2. Step 2: Convert to fraction form
    684,789.39/1,026,627.35 = 285,727.41/x
  3. Step 3: Cross multiply
    684,789.39x = 1,026,627.35 × 285,727.41
  4. Step 4: Simplify right side
    684,789.39x = 293,335,572,322.03
  5. Step 5: Solve for x
    x = 293,335,572,322.03/684,789.39
  6. Step 6: Final answer
    x = 428,358.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.