Home / 1,340,431.80-2,010,647.70-773,561.40

Finding the Fourth Proportional to 1,340,431.80, 2,010,647.70 and 773,561.40

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Solution

The fourth proportional to 1,340,431.80, 2,010,647.70 and 773,561.40 is: 1,160,342.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,431.80 : 2,010,647.70 = 773,561.40 : x
  2. Step 2: Convert to fraction form
    1,340,431.80/2,010,647.70 = 773,561.40/x
  3. Step 3: Cross multiply
    1,340,431.80x = 2,010,647.70 × 773,561.40
  4. Step 4: Simplify right side
    1,340,431.80x = 1,555,359,449,718.78
  5. Step 5: Solve for x
    x = 1,555,359,449,718.78/1,340,431.80
  6. Step 6: Final answer
    x = 1,160,342.10

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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.