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Finding the Fourth Proportional to 537,748.40, 806,428.20 and 271,420.40

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Solution

The fourth proportional to 537,748.40, 806,428.20 and 271,420.40 is: 407,032.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,748.40 : 806,428.20 = 271,420.40 : x
  2. Step 2: Convert to fraction form
    537,748.40/806,428.20 = 271,420.40/x
  3. Step 3: Cross multiply
    537,748.40x = 806,428.20 × 271,420.40
  4. Step 4: Simplify right side
    537,748.40x = 218,881,064,615.28
  5. Step 5: Solve for x
    x = 218,881,064,615.28/537,748.40
  6. Step 6: Final answer
    x = 407,032.48

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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.