Home / 915,523.75-1,263,437.96-507,642.78

Finding the Fourth Proportional to 915,523.75, 1,263,437.96 and 507,642.78

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Solution

The fourth proportional to 915,523.75, 1,263,437.96 and 507,642.78 is: 700,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,523.75 : 1,263,437.96 = 507,642.78 : x
  2. Step 2: Convert to fraction form
    915,523.75/1,263,437.96 = 507,642.78/x
  3. Step 3: Cross multiply
    915,523.75x = 1,263,437.96 × 507,642.78
  4. Step 4: Simplify right side
    915,523.75x = 641,375,158,371.93
  5. Step 5: Solve for x
    x = 641,375,158,371.93/915,523.75
  6. Step 6: Final answer
    x = 700,555.46

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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.