Home / 2,172,438.60-3,258,657.90-1,377,245.40

Finding the Fourth Proportional to 2,172,438.60, 3,258,657.90 and 1,377,245.40

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Solution

The fourth proportional to 2,172,438.60, 3,258,657.90 and 1,377,245.40 is: 2,065,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,438.60 : 3,258,657.90 = 1,377,245.40 : x
  2. Step 2: Convert to fraction form
    2,172,438.60/3,258,657.90 = 1,377,245.40/x
  3. Step 3: Cross multiply
    2,172,438.60x = 3,258,657.90 × 1,377,245.40
  4. Step 4: Simplify right side
    2,172,438.60x = 4,487,971,602,948.66
  5. Step 5: Solve for x
    x = 4,487,971,602,948.66/2,172,438.60
  6. Step 6: Final answer
    x = 2,065,868.10

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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.