Home / 1,115,320.80-1,670,648.40-616,101.60

Finding the Fourth Proportional to 1,115,320.80, 1,670,648.40 and 616,101.60

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Solution

The fourth proportional to 1,115,320.80, 1,670,648.40 and 616,101.60 is: 922,863.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,320.80 : 1,670,648.40 = 616,101.60 : x
  2. Step 2: Convert to fraction form
    1,115,320.80/1,670,648.40 = 616,101.60/x
  3. Step 3: Cross multiply
    1,115,320.80x = 1,670,648.40 × 616,101.60
  4. Step 4: Simplify right side
    1,115,320.80x = 1,029,289,152,277.44
  5. Step 5: Solve for x
    x = 1,029,289,152,277.44/1,115,320.80
  6. Step 6: Final answer
    x = 922,863.76

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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.