Home / 1,510,104.47-2,083,987.85-821,820.74

Finding the Fourth Proportional to 1,510,104.47, 2,083,987.85 and 821,820.74

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Solution

The fourth proportional to 1,510,104.47, 2,083,987.85 and 821,820.74 is: 1,134,136.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,104.47 : 2,083,987.85 = 821,820.74 : x
  2. Step 2: Convert to fraction form
    1,510,104.47/2,083,987.85 = 821,820.74/x
  3. Step 3: Cross multiply
    1,510,104.47x = 2,083,987.85 × 821,820.74
  4. Step 4: Simplify right side
    1,510,104.47x = 1,712,664,422,508.97
  5. Step 5: Solve for x
    x = 1,712,664,422,508.97/1,510,104.47
  6. Step 6: Final answer
    x = 1,134,136.39

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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.