Home / 1,123,364.80-1,685,047.20-324,672.40

Finding the Fourth Proportional to 1,123,364.80, 1,685,047.20 and 324,672.40

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Solution

The fourth proportional to 1,123,364.80, 1,685,047.20 and 324,672.40 is: 487,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,364.80 : 1,685,047.20 = 324,672.40 : x
  2. Step 2: Convert to fraction form
    1,123,364.80/1,685,047.20 = 324,672.40/x
  3. Step 3: Cross multiply
    1,123,364.80x = 1,685,047.20 × 324,672.40
  4. Step 4: Simplify right side
    1,123,364.80x = 547,088,318,537.28
  5. Step 5: Solve for x
    x = 547,088,318,537.28/1,123,364.80
  6. Step 6: Final answer
    x = 487,008.60

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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.