Home / 686,545.41-1,028,477.43-326,203.44

Finding the Fourth Proportional to 686,545.41, 1,028,477.43 and 326,203.44

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Solution

The fourth proportional to 686,545.41, 1,028,477.43 and 326,203.44 is: 488,668.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,545.41 : 1,028,477.43 = 326,203.44 : x
  2. Step 2: Convert to fraction form
    686,545.41/1,028,477.43 = 326,203.44/x
  3. Step 3: Cross multiply
    686,545.41x = 1,028,477.43 × 326,203.44
  4. Step 4: Simplify right side
    686,545.41x = 335,492,875,628.36
  5. Step 5: Solve for x
    x = 335,492,875,628.36/686,545.41
  6. Step 6: Final answer
    x = 488,668.15

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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.