Home / 1,888,659-2,606,345.40-1,029,217.20

Finding the Fourth Proportional to 1,888,659, 2,606,345.40 and 1,029,217.20

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Solution

The fourth proportional to 1,888,659, 2,606,345.40 and 1,029,217.20 is: 1,420,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,659 : 2,606,345.40 = 1,029,217.20 : x
  2. Step 2: Convert to fraction form
    1,888,659/2,606,345.40 = 1,029,217.20/x
  3. Step 3: Cross multiply
    1,888,659x = 2,606,345.40 × 1,029,217.20
  4. Step 4: Simplify right side
    1,888,659x = 2,682,495,514,820.88
  5. Step 5: Solve for x
    x = 2,682,495,514,820.88/1,888,659
  6. Step 6: Final answer
    x = 1,420,317.55

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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.