Home / 1,386,597.84-1,913,517.68-813,647.56

Finding the Fourth Proportional to 1,386,597.84, 1,913,517.68 and 813,647.56

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Solution

The fourth proportional to 1,386,597.84, 1,913,517.68 and 813,647.56 is: 1,122,841.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,597.84 : 1,913,517.68 = 813,647.56 : x
  2. Step 2: Convert to fraction form
    1,386,597.84/1,913,517.68 = 813,647.56/x
  3. Step 3: Cross multiply
    1,386,597.84x = 1,913,517.68 × 813,647.56
  4. Step 4: Simplify right side
    1,386,597.84x = 1,556,928,991,348.86
  5. Step 5: Solve for x
    x = 1,556,928,991,348.86/1,386,597.84
  6. Step 6: Final answer
    x = 1,122,841.06

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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.