Home / 915,639.54-1,263,576.18-507,741.60

Finding the Fourth Proportional to 915,639.54, 1,263,576.18 and 507,741.60

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Solution

The fourth proportional to 915,639.54, 1,263,576.18 and 507,741.60 is: 700,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,639.54 : 1,263,576.18 = 507,741.60 : x
  2. Step 2: Convert to fraction form
    915,639.54/1,263,576.18 = 507,741.60/x
  3. Step 3: Cross multiply
    915,639.54x = 1,263,576.18 × 507,741.60
  4. Step 4: Simplify right side
    915,639.54x = 641,570,191,355.09
  5. Step 5: Solve for x
    x = 641,570,191,355.09/915,639.54
  6. Step 6: Final answer
    x = 700,679.87

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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.