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Finding the Fourth Proportional to 534,806.40, 802,015.20 and 268,478.40

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Solution

The fourth proportional to 534,806.40, 802,015.20 and 268,478.40 is: 402,620.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,806.40 : 802,015.20 = 268,478.40 : x
  2. Step 2: Convert to fraction form
    534,806.40/802,015.20 = 268,478.40/x
  3. Step 3: Cross multiply
    534,806.40x = 802,015.20 × 268,478.40
  4. Step 4: Simplify right side
    534,806.40x = 215,323,757,671.68
  5. Step 5: Solve for x
    x = 215,323,757,671.68/534,806.40
  6. Step 6: Final answer
    x = 402,620.01

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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.