Home / 2,085,947.80-3,128,921.70-823,125.40

Finding the Fourth Proportional to 2,085,947.80, 3,128,921.70 and 823,125.40

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Solution

The fourth proportional to 2,085,947.80, 3,128,921.70 and 823,125.40 is: 1,234,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,947.80 : 3,128,921.70 = 823,125.40 : x
  2. Step 2: Convert to fraction form
    2,085,947.80/3,128,921.70 = 823,125.40/x
  3. Step 3: Cross multiply
    2,085,947.80x = 3,128,921.70 × 823,125.40
  4. Step 4: Simplify right side
    2,085,947.80x = 2,575,494,925,881.18
  5. Step 5: Solve for x
    x = 2,575,494,925,881.18/2,085,947.80
  6. Step 6: Final answer
    x = 1,234,688.10

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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.