Home / 1,220,554.80-1,684,465.44-676,861.13

Finding the Fourth Proportional to 1,220,554.80, 1,684,465.44 and 676,861.13

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Solution

The fourth proportional to 1,220,554.80, 1,684,465.44 and 676,861.13 is: 934,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,554.80 : 1,684,465.44 = 676,861.13 : x
  2. Step 2: Convert to fraction form
    1,220,554.80/1,684,465.44 = 676,861.13/x
  3. Step 3: Cross multiply
    1,220,554.80x = 1,684,465.44 × 676,861.13
  4. Step 4: Simplify right side
    1,220,554.80x = 1,140,149,185,375.51
  5. Step 5: Solve for x
    x = 1,140,149,185,375.51/1,220,554.80
  6. Step 6: Final answer
    x = 934,123.72

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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.