Home / 1,125,878.60-1,690,046.70-628,214.60

Finding the Fourth Proportional to 1,125,878.60, 1,690,046.70 and 628,214.60

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Solution

The fourth proportional to 1,125,878.60, 1,690,046.70 and 628,214.60 is: 943,007.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,878.60 : 1,690,046.70 = 628,214.60 : x
  2. Step 2: Convert to fraction form
    1,125,878.60/1,690,046.70 = 628,214.60/x
  3. Step 3: Cross multiply
    1,125,878.60x = 1,690,046.70 × 628,214.60
  4. Step 4: Simplify right side
    1,125,878.60x = 1,061,712,011,621.82
  5. Step 5: Solve for x
    x = 1,061,712,011,621.82/1,125,878.60
  6. Step 6: Final answer
    x = 943,007.54

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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.