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Finding the Fourth Proportional to 510,930.90, 766,396.35 and 510,930.90

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Solution

The fourth proportional to 510,930.90, 766,396.35 and 510,930.90 is: 766,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,930.90 : 766,396.35 = 510,930.90 : x
  2. Step 2: Convert to fraction form
    510,930.90/766,396.35 = 510,930.90/x
  3. Step 3: Cross multiply
    510,930.90x = 766,396.35 × 510,930.90
  4. Step 4: Simplify right side
    510,930.90x = 391,575,576,862.22
  5. Step 5: Solve for x
    x = 391,575,576,862.22/510,930.90
  6. Step 6: Final answer
    x = 766,396.35

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1.5x scale

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.