Home / 1,128,143.40-1,694,979.90-848,207.40

Finding the Fourth Proportional to 1,128,143.40, 1,694,979.90 and 848,207.40

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Solution

The fourth proportional to 1,128,143.40, 1,694,979.90 and 848,207.40 is: 1,274,389.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,143.40 : 1,694,979.90 = 848,207.40 : x
  2. Step 2: Convert to fraction form
    1,128,143.40/1,694,979.90 = 848,207.40/x
  3. Step 3: Cross multiply
    1,128,143.40x = 1,694,979.90 × 848,207.40
  4. Step 4: Simplify right side
    1,128,143.40x = 1,437,694,494,031.26
  5. Step 5: Solve for x
    x = 1,437,694,494,031.26/1,128,143.40
  6. Step 6: Final answer
    x = 1,274,389.85

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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.