Home / 1,913,721.68-2,868,436.92-776,219.60

Finding the Fourth Proportional to 1,913,721.68, 2,868,436.92 and 776,219.60

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Solution

The fourth proportional to 1,913,721.68, 2,868,436.92 and 776,219.60 is: 1,163,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,721.68 : 2,868,436.92 = 776,219.60 : x
  2. Step 2: Convert to fraction form
    1,913,721.68/2,868,436.92 = 776,219.60/x
  3. Step 3: Cross multiply
    1,913,721.68x = 2,868,436.92 × 776,219.60
  4. Step 4: Simplify right side
    1,913,721.68x = 2,226,536,958,667.63
  5. Step 5: Solve for x
    x = 2,226,536,958,667.63/1,913,721.68
  6. Step 6: Final answer
    x = 1,163,459.13

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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.