Home / 855,047.80-1,281,725.70-404,977.60

Finding the Fourth Proportional to 855,047.80, 1,281,725.70 and 404,977.60

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Solution

The fourth proportional to 855,047.80, 1,281,725.70 and 404,977.60 is: 607,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,047.80 : 1,281,725.70 = 404,977.60 : x
  2. Step 2: Convert to fraction form
    855,047.80/1,281,725.70 = 404,977.60/x
  3. Step 3: Cross multiply
    855,047.80x = 1,281,725.70 × 404,977.60
  4. Step 4: Simplify right side
    855,047.80x = 519,070,197,844.32
  5. Step 5: Solve for x
    x = 519,070,197,844.32/855,047.80
  6. Step 6: Final answer
    x = 607,065.71

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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.