Home / 862,133.72-1,189,781.22-480,160.50

Finding the Fourth Proportional to 862,133.72, 1,189,781.22 and 480,160.50

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Solution

The fourth proportional to 862,133.72, 1,189,781.22 and 480,160.50 is: 662,641.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,133.72 : 1,189,781.22 = 480,160.50 : x
  2. Step 2: Convert to fraction form
    862,133.72/1,189,781.22 = 480,160.50/x
  3. Step 3: Cross multiply
    862,133.72x = 1,189,781.22 × 480,160.50
  4. Step 4: Simplify right side
    862,133.72x = 571,285,945,485.81
  5. Step 5: Solve for x
    x = 571,285,945,485.81/862,133.72
  6. Step 6: Final answer
    x = 662,641.92

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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.