Home / 1,820,120.40-2,512,265.76-1,056,420

Finding the Fourth Proportional to 1,820,120.40, 2,512,265.76 and 1,056,420

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Solution

The fourth proportional to 1,820,120.40, 2,512,265.76 and 1,056,420 is: 1,458,149.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,120.40 : 2,512,265.76 = 1,056,420 : x
  2. Step 2: Convert to fraction form
    1,820,120.40/2,512,265.76 = 1,056,420/x
  3. Step 3: Cross multiply
    1,820,120.40x = 2,512,265.76 × 1,056,420
  4. Step 4: Simplify right side
    1,820,120.40x = 2,654,007,794,179.20
  5. Step 5: Solve for x
    x = 2,654,007,794,179.20/1,820,120.40
  6. Step 6: Final answer
    x = 1,458,149.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.