Home / 1,258,968.20-1,888,233.60-459,838.40

Finding the Fourth Proportional to 1,258,968.20, 1,888,233.60 and 459,838.40

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Solution

The fourth proportional to 1,258,968.20, 1,888,233.60 and 459,838.40 is: 689,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,968.20 : 1,888,233.60 = 459,838.40 : x
  2. Step 2: Convert to fraction form
    1,258,968.20/1,888,233.60 = 459,838.40/x
  3. Step 3: Cross multiply
    1,258,968.20x = 1,888,233.60 × 459,838.40
  4. Step 4: Simplify right side
    1,258,968.20x = 868,282,317,450.24
  5. Step 5: Solve for x
    x = 868,282,317,450.24/1,258,968.20
  6. Step 6: Final answer
    x = 689,677.72

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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.