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Finding the Fourth Proportional to 550,281.67, 824,089.34 and 279,698.13

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Solution

The fourth proportional to 550,281.67, 824,089.34 and 279,698.13 is: 418,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,281.67 : 824,089.34 = 279,698.13 : x
  2. Step 2: Convert to fraction form
    550,281.67/824,089.34 = 279,698.13/x
  3. Step 3: Cross multiply
    550,281.67x = 824,089.34 × 279,698.13
  4. Step 4: Simplify right side
    550,281.67x = 230,496,248,050.18
  5. Step 5: Solve for x
    x = 230,496,248,050.18/550,281.67
  6. Step 6: Final answer
    x = 418,869.57

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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.