Home / 2,806,721.40-4,210,082.10-913,654.20

Finding the Fourth Proportional to 2,806,721.40, 4,210,082.10 and 913,654.20

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Solution

The fourth proportional to 2,806,721.40, 4,210,082.10 and 913,654.20 is: 1,370,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806,721.40 : 4,210,082.10 = 913,654.20 : x
  2. Step 2: Convert to fraction form
    2,806,721.40/4,210,082.10 = 913,654.20/x
  3. Step 3: Cross multiply
    2,806,721.40x = 4,210,082.10 × 913,654.20
  4. Step 4: Simplify right side
    2,806,721.40x = 3,846,559,193,009.82
  5. Step 5: Solve for x
    x = 3,846,559,193,009.82/2,806,721.40
  6. Step 6: Final answer
    x = 1,370,481.30

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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.