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Finding the Fourth Proportional to 512,258.10, 718,211.10 and 512,258.10

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Solution

The fourth proportional to 512,258.10, 718,211.10 and 512,258.10 is: 718,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,258.10 : 718,211.10 = 512,258.10 : x
  2. Step 2: Convert to fraction form
    512,258.10/718,211.10 = 512,258.10/x
  3. Step 3: Cross multiply
    512,258.10x = 718,211.10 × 512,258.10
  4. Step 4: Simplify right side
    512,258.10x = 367,909,453,484.91
  5. Step 5: Solve for x
    x = 367,909,453,484.91/512,258.10
  6. Step 6: Final answer
    x = 718,211.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.