Home / 621,664.32-857,898.06-367,031.90

Finding the Fourth Proportional to 621,664.32, 857,898.06 and 367,031.90

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Solution

The fourth proportional to 621,664.32, 857,898.06 and 367,031.90 is: 506,504.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,664.32 : 857,898.06 = 367,031.90 : x
  2. Step 2: Convert to fraction form
    621,664.32/857,898.06 = 367,031.90/x
  3. Step 3: Cross multiply
    621,664.32x = 857,898.06 × 367,031.90
  4. Step 4: Simplify right side
    621,664.32x = 314,875,954,968.11
  5. Step 5: Solve for x
    x = 314,875,954,968.11/621,664.32
  6. Step 6: Final answer
    x = 506,504.79

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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.