Home / 931,890.90-1,397,836.26-300,897.66

Finding the Fourth Proportional to 931,890.90, 1,397,836.26 and 300,897.66

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Solution

The fourth proportional to 931,890.90, 1,397,836.26 and 300,897.66 is: 451,346.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,890.90 : 1,397,836.26 = 300,897.66 : x
  2. Step 2: Convert to fraction form
    931,890.90/1,397,836.26 = 300,897.66/x
  3. Step 3: Cross multiply
    931,890.90x = 1,397,836.26 × 300,897.66
  4. Step 4: Simplify right side
    931,890.90x = 420,605,659,697.15
  5. Step 5: Solve for x
    x = 420,605,659,697.15/931,890.90
  6. Step 6: Final answer
    x = 451,346.46

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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.