Home / 467,816.10-645,659.02-307,137.22

Finding the Fourth Proportional to 467,816.10, 645,659.02 and 307,137.22

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Solution

The fourth proportional to 467,816.10, 645,659.02 and 307,137.22 is: 423,897.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,816.10 : 645,659.02 = 307,137.22 : x
  2. Step 2: Convert to fraction form
    467,816.10/645,659.02 = 307,137.22/x
  3. Step 3: Cross multiply
    467,816.10x = 645,659.02 × 307,137.22
  4. Step 4: Simplify right side
    467,816.10x = 198,305,916,470.72
  5. Step 5: Solve for x
    x = 198,305,916,470.72/467,816.10
  6. Step 6: Final answer
    x = 423,897.16

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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.