Home / 1,258,588.30-1,888,155.83-459,868.57

Finding the Fourth Proportional to 1,258,588.30, 1,888,155.83 and 459,868.57

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Solution

The fourth proportional to 1,258,588.30, 1,888,155.83 and 459,868.57 is: 689,902.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,588.30 : 1,888,155.83 = 459,868.57 : x
  2. Step 2: Convert to fraction form
    1,258,588.30/1,888,155.83 = 459,868.57/x
  3. Step 3: Cross multiply
    1,258,588.30x = 1,888,155.83 × 459,868.57
  4. Step 4: Simplify right side
    1,258,588.30x = 868,303,521,479.26
  5. Step 5: Solve for x
    x = 868,303,521,479.26/1,258,588.30
  6. Step 6: Final answer
    x = 689,902.74

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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.