Home / 432,628.92-648,966.48-133,315.08

Finding the Fourth Proportional to 432,628.92, 648,966.48 and 133,315.08

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Solution

The fourth proportional to 432,628.92, 648,966.48 and 133,315.08 is: 199,979.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,628.92 : 648,966.48 = 133,315.08 : x
  2. Step 2: Convert to fraction form
    432,628.92/648,966.48 = 133,315.08/x
  3. Step 3: Cross multiply
    432,628.92x = 648,966.48 × 133,315.08
  4. Step 4: Simplify right side
    432,628.92x = 86,517,018,198.52
  5. Step 5: Solve for x
    x = 86,517,018,198.52/432,628.92
  6. Step 6: Final answer
    x = 199,979.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.