Home / 804,947.30-1,207,420.95-243,908.90

Finding the Fourth Proportional to 804,947.30, 1,207,420.95 and 243,908.90

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Solution

The fourth proportional to 804,947.30, 1,207,420.95 and 243,908.90 is: 365,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,947.30 : 1,207,420.95 = 243,908.90 : x
  2. Step 2: Convert to fraction form
    804,947.30/1,207,420.95 = 243,908.90/x
  3. Step 3: Cross multiply
    804,947.30x = 1,207,420.95 × 243,908.90
  4. Step 4: Simplify right side
    804,947.30x = 294,500,715,751.46
  5. Step 5: Solve for x
    x = 294,500,715,751.46/804,947.30
  6. Step 6: Final answer
    x = 365,863.35

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Double scale
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Similar ratio
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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.