Home / 915,739.06-1,263,719.94-507,903.39

Finding the Fourth Proportional to 915,739.06, 1,263,719.94 and 507,903.39

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Solution

The fourth proportional to 915,739.06, 1,263,719.94 and 507,903.39 is: 700,906.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,739.06 : 1,263,719.94 = 507,903.39 : x
  2. Step 2: Convert to fraction form
    915,739.06/1,263,719.94 = 507,903.39/x
  3. Step 3: Cross multiply
    915,739.06x = 1,263,719.94 × 507,903.39
  4. Step 4: Simplify right side
    915,739.06x = 641,847,641,536.60
  5. Step 5: Solve for x
    x = 641,847,641,536.60/915,739.06
  6. Step 6: Final answer
    x = 700,906.70

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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.