Home / 670,538.90-1,005,986.55-291,296.90

Finding the Fourth Proportional to 670,538.90, 1,005,986.55 and 291,296.90

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Solution

The fourth proportional to 670,538.90, 1,005,986.55 and 291,296.90 is: 437,022.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,538.90 : 1,005,986.55 = 291,296.90 : x
  2. Step 2: Convert to fraction form
    670,538.90/1,005,986.55 = 291,296.90/x
  3. Step 3: Cross multiply
    670,538.90x = 1,005,986.55 × 291,296.90
  4. Step 4: Simplify right side
    670,538.90x = 293,040,763,456.70
  5. Step 5: Solve for x
    x = 293,040,763,456.70/670,538.90
  6. Step 6: Final answer
    x = 437,022.76

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1.5x scale

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.