Home / 551,219.20-826,828.80-457,907.20

Finding the Fourth Proportional to 551,219.20, 826,828.80 and 457,907.20

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Solution

The fourth proportional to 551,219.20, 826,828.80 and 457,907.20 is: 686,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,219.20 : 826,828.80 = 457,907.20 : x
  2. Step 2: Convert to fraction form
    551,219.20/826,828.80 = 457,907.20/x
  3. Step 3: Cross multiply
    551,219.20x = 826,828.80 × 457,907.20
  4. Step 4: Simplify right side
    551,219.20x = 378,610,860,687.36
  5. Step 5: Solve for x
    x = 378,610,860,687.36/551,219.20
  6. Step 6: Final answer
    x = 686,860.80

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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.