Home / 726,979.08-1,003,724.96-455,156.86

Finding the Fourth Proportional to 726,979.08, 1,003,724.96 and 455,156.86

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Solution

The fourth proportional to 726,979.08, 1,003,724.96 and 455,156.86 is: 628,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,979.08 : 1,003,724.96 = 455,156.86 : x
  2. Step 2: Convert to fraction form
    726,979.08/1,003,724.96 = 455,156.86/x
  3. Step 3: Cross multiply
    726,979.08x = 1,003,724.96 × 455,156.86
  4. Step 4: Simplify right side
    726,979.08x = 456,852,301,097.23
  5. Step 5: Solve for x
    x = 456,852,301,097.23/726,979.08
  6. Step 6: Final answer
    x = 628,425.65

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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.