Home / 2,171,479.20-3,258,385.20-909,434.40

Finding the Fourth Proportional to 2,171,479.20, 3,258,385.20 and 909,434.40

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Solution

The fourth proportional to 2,171,479.20, 3,258,385.20 and 909,434.40 is: 1,364,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,479.20 : 3,258,385.20 = 909,434.40 : x
  2. Step 2: Convert to fraction form
    2,171,479.20/3,258,385.20 = 909,434.40/x
  3. Step 3: Cross multiply
    2,171,479.20x = 3,258,385.20 × 909,434.40
  4. Step 4: Simplify right side
    2,171,479.20x = 2,963,287,589,330.88
  5. Step 5: Solve for x
    x = 2,963,287,589,330.88/2,171,479.20
  6. Step 6: Final answer
    x = 1,364,640.10

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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.