Home / 915,378.87-1,263,297.41-507,608.61

Finding the Fourth Proportional to 915,378.87, 1,263,297.41 and 507,608.61

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Solution

The fourth proportional to 915,378.87, 1,263,297.41 and 507,608.61 is: 700,541.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,378.87 : 1,263,297.41 = 507,608.61 : x
  2. Step 2: Convert to fraction form
    915,378.87/1,263,297.41 = 507,608.61/x
  3. Step 3: Cross multiply
    915,378.87x = 1,263,297.41 × 507,608.61
  4. Step 4: Simplify right side
    915,378.87x = 641,260,642,306.70
  5. Step 5: Solve for x
    x = 641,260,642,306.70/915,378.87
  6. Step 6: Final answer
    x = 700,541.23

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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.