Home / 1,387,690.00-2,083,423.38-780,906.98

Finding the Fourth Proportional to 1,387,690.00, 2,083,423.38 and 780,906.98

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Solution

The fourth proportional to 1,387,690.00, 2,083,423.38 and 780,906.98 is: 1,172,423.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,690.00 : 2,083,423.38 = 780,906.98 : x
  2. Step 2: Convert to fraction form
    1,387,690.00/2,083,423.38 = 780,906.98/x
  3. Step 3: Cross multiply
    1,387,690.00x = 2,083,423.38 × 780,906.98
  4. Step 4: Simplify right side
    1,387,690.00x = 1,626,959,862,017.35
  5. Step 5: Solve for x
    x = 1,626,959,862,017.35/1,387,690.00
  6. Step 6: Final answer
    x = 1,172,423.14

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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.