Home / 1,312,103.14-1,968,776.79-780,674.02

Finding the Fourth Proportional to 1,312,103.14, 1,968,776.79 and 780,674.02

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Solution

The fourth proportional to 1,312,103.14, 1,968,776.79 and 780,674.02 is: 1,171,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,103.14 : 1,968,776.79 = 780,674.02 : x
  2. Step 2: Convert to fraction form
    1,312,103.14/1,968,776.79 = 780,674.02/x
  3. Step 3: Cross multiply
    1,312,103.14x = 1,968,776.79 × 780,674.02
  4. Step 4: Simplify right side
    1,312,103.14x = 1,536,972,891,132.00
  5. Step 5: Solve for x
    x = 1,536,972,891,132.00/1,312,103.14
  6. Step 6: Final answer
    x = 1,171,381.15

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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.