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Finding the Fourth Proportional to 588,789, 812,528.82 and 320,517

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Solution

The fourth proportional to 588,789, 812,528.82 and 320,517 is: 442,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,789 : 812,528.82 = 320,517 : x
  2. Step 2: Convert to fraction form
    588,789/812,528.82 = 320,517/x
  3. Step 3: Cross multiply
    588,789x = 812,528.82 × 320,517
  4. Step 4: Simplify right side
    588,789x = 260,429,299,799.94
  5. Step 5: Solve for x
    x = 260,429,299,799.94/588,789
  6. Step 6: Final answer
    x = 442,313.46

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1.5x scale

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.