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Finding the Fourth Proportional to 1,502,739.72, 2,073,993.48 and 929,964.42

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Solution

The fourth proportional to 1,502,739.72, 2,073,993.48 and 929,964.42 is: 1,283,482.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502,739.72 : 2,073,993.48 = 929,964.42 : x
  2. Step 2: Convert to fraction form
    1,502,739.72/2,073,993.48 = 929,964.42/x
  3. Step 3: Cross multiply
    1,502,739.72x = 2,073,993.48 × 929,964.42
  4. Step 4: Simplify right side
    1,502,739.72x = 1,928,740,143,711.98
  5. Step 5: Solve for x
    x = 1,928,740,143,711.98/1,502,739.72
  6. Step 6: Final answer
    x = 1,283,482.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.