Home / 467,846.04-645,042.60-390,433.26

Finding the Fourth Proportional to 467,846.04, 645,042.60 and 390,433.26

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Solution

The fourth proportional to 467,846.04, 645,042.60 and 390,433.26 is: 538,309.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,846.04 : 645,042.60 = 390,433.26 : x
  2. Step 2: Convert to fraction form
    467,846.04/645,042.60 = 390,433.26/x
  3. Step 3: Cross multiply
    467,846.04x = 645,042.60 × 390,433.26
  4. Step 4: Simplify right side
    467,846.04x = 251,846,085,156.88
  5. Step 5: Solve for x
    x = 251,846,085,156.88/467,846.04
  6. Step 6: Final answer
    x = 538,309.75

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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.