Home / 2,688,546.40-4,037,485.20-1,428,834.40

Finding the Fourth Proportional to 2,688,546.40, 4,037,485.20 and 1,428,834.40

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Solution

The fourth proportional to 2,688,546.40, 4,037,485.20 and 1,428,834.40 is: 2,145,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,546.40 : 4,037,485.20 = 1,428,834.40 : x
  2. Step 2: Convert to fraction form
    2,688,546.40/4,037,485.20 = 1,428,834.40/x
  3. Step 3: Cross multiply
    2,688,546.40x = 4,037,485.20 × 1,428,834.40
  4. Step 4: Simplify right side
    2,688,546.40x = 5,768,897,743,250.88
  5. Step 5: Solve for x
    x = 5,768,897,743,250.88/2,688,546.40
  6. Step 6: Final answer
    x = 2,145,731.14

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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.