Home / 1,728,510.40-2,592,765.60-1,429,328.80

Finding the Fourth Proportional to 1,728,510.40, 2,592,765.60 and 1,429,328.80

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Solution

The fourth proportional to 1,728,510.40, 2,592,765.60 and 1,429,328.80 is: 2,143,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,510.40 : 2,592,765.60 = 1,429,328.80 : x
  2. Step 2: Convert to fraction form
    1,728,510.40/2,592,765.60 = 1,429,328.80/x
  3. Step 3: Cross multiply
    1,728,510.40x = 2,592,765.60 × 1,429,328.80
  4. Step 4: Simplify right side
    1,728,510.40x = 3,705,914,543,729.28
  5. Step 5: Solve for x
    x = 3,705,914,543,729.28/1,728,510.40
  6. Step 6: Final answer
    x = 2,143,993.20

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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.