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Finding the Fourth Proportional to 538,435.84, 743,073.92 and 296,717.76

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Solution

The fourth proportional to 538,435.84, 743,073.92 and 296,717.76 is: 409,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,435.84 : 743,073.92 = 296,717.76 : x
  2. Step 2: Convert to fraction form
    538,435.84/743,073.92 = 296,717.76/x
  3. Step 3: Cross multiply
    538,435.84x = 743,073.92 × 296,717.76
  4. Step 4: Simplify right side
    538,435.84x = 220,483,229,056.82
  5. Step 5: Solve for x
    x = 220,483,229,056.82/538,435.84
  6. Step 6: Final answer
    x = 409,488.40

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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.