Home / 1,288,210.12-1,777,696.14-715,235.56

Finding the Fourth Proportional to 1,288,210.12, 1,777,696.14 and 715,235.56

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Solution

The fourth proportional to 1,288,210.12, 1,777,696.14 and 715,235.56 is: 987,006.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,210.12 : 1,777,696.14 = 715,235.56 : x
  2. Step 2: Convert to fraction form
    1,288,210.12/1,777,696.14 = 715,235.56/x
  3. Step 3: Cross multiply
    1,288,210.12x = 1,777,696.14 × 715,235.56
  4. Step 4: Simplify right side
    1,288,210.12x = 1,271,471,494,202.74
  5. Step 5: Solve for x
    x = 1,271,471,494,202.74/1,288,210.12
  6. Step 6: Final answer
    x = 987,006.29

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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.