Home / 411,312.22-616,719.24-268,985.71

Finding the Fourth Proportional to 411,312.22, 616,719.24 and 268,985.71

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Solution

The fourth proportional to 411,312.22, 616,719.24 and 268,985.71 is: 403,315.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,312.22 : 616,719.24 = 268,985.71 : x
  2. Step 2: Convert to fraction form
    411,312.22/616,719.24 = 268,985.71/x
  3. Step 3: Cross multiply
    411,312.22x = 616,719.24 × 268,985.71
  4. Step 4: Simplify right side
    411,312.22x = 165,888,662,642.06
  5. Step 5: Solve for x
    x = 165,888,662,642.06/411,312.22
  6. Step 6: Final answer
    x = 403,315.67

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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.