Home / 1,258,966.20-1,888,230.60-459,836.40

Finding the Fourth Proportional to 1,258,966.20, 1,888,230.60 and 459,836.40

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Solution

The fourth proportional to 1,258,966.20, 1,888,230.60 and 459,836.40 is: 689,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,966.20 : 1,888,230.60 = 459,836.40 : x
  2. Step 2: Convert to fraction form
    1,258,966.20/1,888,230.60 = 459,836.40/x
  3. Step 3: Cross multiply
    1,258,966.20x = 1,888,230.60 × 459,836.40
  4. Step 4: Simplify right side
    1,258,966.20x = 868,277,161,473.84
  5. Step 5: Solve for x
    x = 868,277,161,473.84/1,258,966.20
  6. Step 6: Final answer
    x = 689,674.72

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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.