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Finding the Fourth Proportional to 534,746.40, 801,730.80 and 219,040.80

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Solution

The fourth proportional to 534,746.40, 801,730.80 and 219,040.80 is: 328,401.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,746.40 : 801,730.80 = 219,040.80 : x
  2. Step 2: Convert to fraction form
    534,746.40/801,730.80 = 219,040.80/x
  3. Step 3: Cross multiply
    534,746.40x = 801,730.80 × 219,040.80
  4. Step 4: Simplify right side
    534,746.40x = 175,611,755,816.64
  5. Step 5: Solve for x
    x = 175,611,755,816.64/534,746.40
  6. Step 6: Final answer
    x = 328,401.94

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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.