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Finding the Fourth Proportional to 547,622.90, 820,551.15 and 310,259.70

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Solution

The fourth proportional to 547,622.90, 820,551.15 and 310,259.70 is: 464,889.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,622.90 : 820,551.15 = 310,259.70 : x
  2. Step 2: Convert to fraction form
    547,622.90/820,551.15 = 310,259.70/x
  3. Step 3: Cross multiply
    547,622.90x = 820,551.15 × 310,259.70
  4. Step 4: Simplify right side
    547,622.90x = 254,583,953,633.66
  5. Step 5: Solve for x
    x = 254,583,953,633.66/547,622.90
  6. Step 6: Final answer
    x = 464,889.17

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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.