Home / 782,699.04-1,082,298.90-621,273.84

Finding the Fourth Proportional to 782,699.04, 1,082,298.90 and 621,273.84

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Solution

The fourth proportional to 782,699.04, 1,082,298.90 and 621,273.84 is: 859,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,699.04 : 1,082,298.90 = 621,273.84 : x
  2. Step 2: Convert to fraction form
    782,699.04/1,082,298.90 = 621,273.84/x
  3. Step 3: Cross multiply
    782,699.04x = 1,082,298.90 × 621,273.84
  4. Step 4: Simplify right side
    782,699.04x = 672,403,993,630.78
  5. Step 5: Solve for x
    x = 672,403,993,630.78/782,699.04
  6. Step 6: Final answer
    x = 859,083.71

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1.5x scale

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.