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Finding the Fourth Proportional to 544,515.70, 816,664.20 and 260,205.70

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Solution

The fourth proportional to 544,515.70, 816,664.20 and 260,205.70 is: 390,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,515.70 : 816,664.20 = 260,205.70 : x
  2. Step 2: Convert to fraction form
    544,515.70/816,664.20 = 260,205.70/x
  3. Step 3: Cross multiply
    544,515.70x = 816,664.20 × 260,205.70
  4. Step 4: Simplify right side
    544,515.70x = 212,500,679,825.94
  5. Step 5: Solve for x
    x = 212,500,679,825.94/544,515.70
  6. Step 6: Final answer
    x = 390,256.30

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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.