Home / 465,432.09-642,298.86-261,491.61

Finding the Fourth Proportional to 465,432.09, 642,298.86 and 261,491.61

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Solution

The fourth proportional to 465,432.09, 642,298.86 and 261,491.61 is: 360,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,432.09 : 642,298.86 = 261,491.61 : x
  2. Step 2: Convert to fraction form
    465,432.09/642,298.86 = 261,491.61/x
  3. Step 3: Cross multiply
    465,432.09x = 642,298.86 × 261,491.61
  4. Step 4: Simplify right side
    465,432.09x = 167,955,763,002.57
  5. Step 5: Solve for x
    x = 167,955,763,002.57/465,432.09
  6. Step 6: Final answer
    x = 360,859.87

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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.