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Finding the Fourth Proportional to 911,026.77, 1,257,370.77 and 529,275

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Solution

The fourth proportional to 911,026.77, 1,257,370.77 and 529,275 is: 730,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,026.77 : 1,257,370.77 = 529,275 : x
  2. Step 2: Convert to fraction form
    911,026.77/1,257,370.77 = 529,275/x
  3. Step 3: Cross multiply
    911,026.77x = 1,257,370.77 × 529,275
  4. Step 4: Simplify right side
    911,026.77x = 665,494,914,291.75
  5. Step 5: Solve for x
    x = 665,494,914,291.75/911,026.77
  6. Step 6: Final answer
    x = 730,488.87

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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.