Home / 1,010,343.85-1,515,766.87-300,370.75

Finding the Fourth Proportional to 1,010,343.85, 1,515,766.87 and 300,370.75

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Solution

The fourth proportional to 1,010,343.85, 1,515,766.87 and 300,370.75 is: 450,630.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,343.85 : 1,515,766.87 = 300,370.75 : x
  2. Step 2: Convert to fraction form
    1,010,343.85/1,515,766.87 = 300,370.75/x
  3. Step 3: Cross multiply
    1,010,343.85x = 1,515,766.87 × 300,370.75
  4. Step 4: Simplify right side
    1,010,343.85x = 455,292,028,153.10
  5. Step 5: Solve for x
    x = 455,292,028,153.10/1,010,343.85
  6. Step 6: Final answer
    x = 450,630.77

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Double scale
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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.