Home / 1,258,616.80-1,888,198.64-459,897.16

Finding the Fourth Proportional to 1,258,616.80, 1,888,198.64 and 459,897.16

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Solution

The fourth proportional to 1,258,616.80, 1,888,198.64 and 459,897.16 is: 689,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,616.80 : 1,888,198.64 = 459,897.16 : x
  2. Step 2: Convert to fraction form
    1,258,616.80/1,888,198.64 = 459,897.16/x
  3. Step 3: Cross multiply
    1,258,616.80x = 1,888,198.64 × 459,897.16
  4. Step 4: Simplify right side
    1,258,616.80x = 868,377,192,051.86
  5. Step 5: Solve for x
    x = 868,377,192,051.86/1,258,616.80
  6. Step 6: Final answer
    x = 689,945.65

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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.