Home / 2,688,912.40-4,038,034.20-1,429,200.40

Finding the Fourth Proportional to 2,688,912.40, 4,038,034.20 and 1,429,200.40

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Solution

The fourth proportional to 2,688,912.40, 4,038,034.20 and 1,429,200.40 is: 2,146,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,912.40 : 4,038,034.20 = 1,429,200.40 : x
  2. Step 2: Convert to fraction form
    2,688,912.40/4,038,034.20 = 1,429,200.40/x
  3. Step 3: Cross multiply
    2,688,912.40x = 4,038,034.20 × 1,429,200.40
  4. Step 4: Simplify right side
    2,688,912.40x = 5,771,160,093,853.68
  5. Step 5: Solve for x
    x = 5,771,160,093,853.68/2,688,912.40
  6. Step 6: Final answer
    x = 2,146,280.44

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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.