Home / 1,020,878.32-1,408,788.12-568,159.60

Finding the Fourth Proportional to 1,020,878.32, 1,408,788.12 and 568,159.60

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Solution

The fourth proportional to 1,020,878.32, 1,408,788.12 and 568,159.60 is: 784,046.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,878.32 : 1,408,788.12 = 568,159.60 : x
  2. Step 2: Convert to fraction form
    1,020,878.32/1,408,788.12 = 568,159.60/x
  3. Step 3: Cross multiply
    1,020,878.32x = 1,408,788.12 × 568,159.60
  4. Step 4: Simplify right side
    1,020,878.32x = 800,416,494,743.95
  5. Step 5: Solve for x
    x = 800,416,494,743.95/1,020,878.32
  6. Step 6: Final answer
    x = 784,046.91

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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.