Home / 1,369,362.80-1,889,722.28-749,175.76

Finding the Fourth Proportional to 1,369,362.80, 1,889,722.28 and 749,175.76

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Solution

The fourth proportional to 1,369,362.80, 1,889,722.28 and 749,175.76 is: 1,033,863.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,362.80 : 1,889,722.28 = 749,175.76 : x
  2. Step 2: Convert to fraction form
    1,369,362.80/1,889,722.28 = 749,175.76/x
  3. Step 3: Cross multiply
    1,369,362.80x = 1,889,722.28 × 749,175.76
  4. Step 4: Simplify right side
    1,369,362.80x = 1,415,734,125,307.93
  5. Step 5: Solve for x
    x = 1,415,734,125,307.93/1,369,362.80
  6. Step 6: Final answer
    x = 1,033,863.43

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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.