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Finding the Fourth Proportional to 547,761.60, 821,642.40 and 370,814.40

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Solution

The fourth proportional to 547,761.60, 821,642.40 and 370,814.40 is: 556,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,761.60 : 821,642.40 = 370,814.40 : x
  2. Step 2: Convert to fraction form
    547,761.60/821,642.40 = 370,814.40/x
  3. Step 3: Cross multiply
    547,761.60x = 821,642.40 × 370,814.40
  4. Step 4: Simplify right side
    547,761.60x = 304,676,833,570.56
  5. Step 5: Solve for x
    x = 304,676,833,570.56/547,761.60
  6. Step 6: Final answer
    x = 556,221.60

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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.