Home / 855,815.12-1,181,043.28-468,646.88

Finding the Fourth Proportional to 855,815.12, 1,181,043.28 and 468,646.88

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Solution

The fourth proportional to 855,815.12, 1,181,043.28 and 468,646.88 is: 646,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,815.12 : 1,181,043.28 = 468,646.88 : x
  2. Step 2: Convert to fraction form
    855,815.12/1,181,043.28 = 468,646.88/x
  3. Step 3: Cross multiply
    855,815.12x = 1,181,043.28 × 468,646.88
  4. Step 4: Simplify right side
    855,815.12x = 553,492,248,316.97
  5. Step 5: Solve for x
    x = 553,492,248,316.97/855,815.12
  6. Step 6: Final answer
    x = 646,742.78

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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.