Home / 742,439.37-1,022,983.71-500,301.42

Finding the Fourth Proportional to 742,439.37, 1,022,983.71 and 500,301.42

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Solution

The fourth proportional to 742,439.37, 1,022,983.71 and 500,301.42 is: 689,349.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,439.37 : 1,022,983.71 = 500,301.42 : x
  2. Step 2: Convert to fraction form
    742,439.37/1,022,983.71 = 500,301.42/x
  3. Step 3: Cross multiply
    742,439.37x = 1,022,983.71 × 500,301.42
  4. Step 4: Simplify right side
    742,439.37x = 511,800,202,749.87
  5. Step 5: Solve for x
    x = 511,800,202,749.87/742,439.37
  6. Step 6: Final answer
    x = 689,349.49

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1.5x scale

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.