Home / 862,262.91-1,189,959.53-480,289.86

Finding the Fourth Proportional to 862,262.91, 1,189,959.53 and 480,289.86

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Solution

The fourth proportional to 862,262.91, 1,189,959.53 and 480,289.86 is: 662,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,262.91 : 1,189,959.53 = 480,289.86 : x
  2. Step 2: Convert to fraction form
    862,262.91/1,189,959.53 = 480,289.86/x
  3. Step 3: Cross multiply
    862,262.91x = 1,189,959.53 × 480,289.86
  4. Step 4: Simplify right side
    862,262.91x = 571,525,493,667.92
  5. Step 5: Solve for x
    x = 571,525,493,667.92/862,262.91
  6. Step 6: Final answer
    x = 662,820.45

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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.