Home / 1,230,150.40-1,843,729.50-870,424.90

Finding the Fourth Proportional to 1,230,150.40, 1,843,729.50 and 870,424.90

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Solution

The fourth proportional to 1,230,150.40, 1,843,729.50 and 870,424.90 is: 1,304,578.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,150.40 : 1,843,729.50 = 870,424.90 : x
  2. Step 2: Convert to fraction form
    1,230,150.40/1,843,729.50 = 870,424.90/x
  3. Step 3: Cross multiply
    1,230,150.40x = 1,843,729.50 × 870,424.90
  4. Step 4: Simplify right side
    1,230,150.40x = 1,604,828,065,664.55
  5. Step 5: Solve for x
    x = 1,604,828,065,664.55/1,230,150.40
  6. Step 6: Final answer
    x = 1,304,578.75

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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.