Home / 1,247,145.60-1,870,718.40-448,453.20

Finding the Fourth Proportional to 1,247,145.60, 1,870,718.40 and 448,453.20

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Solution

The fourth proportional to 1,247,145.60, 1,870,718.40 and 448,453.20 is: 672,679.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,145.60 : 1,870,718.40 = 448,453.20 : x
  2. Step 2: Convert to fraction form
    1,247,145.60/1,870,718.40 = 448,453.20/x
  3. Step 3: Cross multiply
    1,247,145.60x = 1,870,718.40 × 448,453.20
  4. Step 4: Simplify right side
    1,247,145.60x = 838,929,652,778.88
  5. Step 5: Solve for x
    x = 838,929,652,778.88/1,247,145.60
  6. Step 6: Final answer
    x = 672,679.80

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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.