Home / 816,653.95-1,222,113.83-670,862.90

Finding the Fourth Proportional to 816,653.95, 1,222,113.83 and 670,862.90

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Solution

The fourth proportional to 816,653.95, 1,222,113.83 and 670,862.90 is: 1,003,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,653.95 : 1,222,113.83 = 670,862.90 : x
  2. Step 2: Convert to fraction form
    816,653.95/1,222,113.83 = 670,862.90/x
  3. Step 3: Cross multiply
    816,653.95x = 1,222,113.83 × 670,862.90
  4. Step 4: Simplify right side
    816,653.95x = 819,870,819,231.89
  5. Step 5: Solve for x
    x = 819,870,819,231.89/816,653.95
  6. Step 6: Final answer
    x = 1,003,939.08

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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.