Home / 842,171.70-1,263,257.55-487,002.90

Finding the Fourth Proportional to 842,171.70, 1,263,257.55 and 487,002.90

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Solution

The fourth proportional to 842,171.70, 1,263,257.55 and 487,002.90 is: 730,504.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,171.70 : 1,263,257.55 = 487,002.90 : x
  2. Step 2: Convert to fraction form
    842,171.70/1,263,257.55 = 487,002.90/x
  3. Step 3: Cross multiply
    842,171.70x = 1,263,257.55 × 487,002.90
  4. Step 4: Simplify right side
    842,171.70x = 615,210,090,296.90
  5. Step 5: Solve for x
    x = 615,210,090,296.90/842,171.70
  6. Step 6: Final answer
    x = 730,504.35

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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.