Home / 1,061,987.40-1,593,888.30-431,353.80

Finding the Fourth Proportional to 1,061,987.40, 1,593,888.30 and 431,353.80

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Solution

The fourth proportional to 1,061,987.40, 1,593,888.30 and 431,353.80 is: 647,399.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061,987.40 : 1,593,888.30 = 431,353.80 : x
  2. Step 2: Convert to fraction form
    1,061,987.40/1,593,888.30 = 431,353.80/x
  3. Step 3: Cross multiply
    1,061,987.40x = 1,593,888.30 × 431,353.80
  4. Step 4: Simplify right side
    1,061,987.40x = 687,529,774,980.54
  5. Step 5: Solve for x
    x = 687,529,774,980.54/1,061,987.40
  6. Step 6: Final answer
    x = 647,399.18

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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.