Home / 3,112,291.20-4,668,436.80-868,429.20

Finding the Fourth Proportional to 3,112,291.20, 4,668,436.80 and 868,429.20

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Solution

The fourth proportional to 3,112,291.20, 4,668,436.80 and 868,429.20 is: 1,302,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112,291.20 : 4,668,436.80 = 868,429.20 : x
  2. Step 2: Convert to fraction form
    3,112,291.20/4,668,436.80 = 868,429.20/x
  3. Step 3: Cross multiply
    3,112,291.20x = 4,668,436.80 × 868,429.20
  4. Step 4: Simplify right side
    3,112,291.20x = 4,054,206,835,474.56
  5. Step 5: Solve for x
    x = 4,054,206,835,474.56/3,112,291.20
  6. Step 6: Final answer
    x = 1,302,643.80

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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.