Home / 1,339,681.28-2,009,799.68-393,082.88

Finding the Fourth Proportional to 1,339,681.28, 2,009,799.68 and 393,082.88

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Solution

The fourth proportional to 1,339,681.28, 2,009,799.68 and 393,082.88 is: 589,705.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,681.28 : 2,009,799.68 = 393,082.88 : x
  2. Step 2: Convert to fraction form
    1,339,681.28/2,009,799.68 = 393,082.88/x
  3. Step 3: Cross multiply
    1,339,681.28x = 2,009,799.68 × 393,082.88
  4. Step 4: Simplify right side
    1,339,681.28x = 790,017,846,437.48
  5. Step 5: Solve for x
    x = 790,017,846,437.48/1,339,681.28
  6. Step 6: Final answer
    x = 589,705.82

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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.