Home / 879,663.90-1,318,904.55-346,910.70

Finding the Fourth Proportional to 879,663.90, 1,318,904.55 and 346,910.70

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Solution

The fourth proportional to 879,663.90, 1,318,904.55 and 346,910.70 is: 520,132.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,663.90 : 1,318,904.55 = 346,910.70 : x
  2. Step 2: Convert to fraction form
    879,663.90/1,318,904.55 = 346,910.70/x
  3. Step 3: Cross multiply
    879,663.90x = 1,318,904.55 × 346,910.70
  4. Step 4: Simplify right side
    879,663.90x = 457,542,100,673.69
  5. Step 5: Solve for x
    x = 457,542,100,673.69/879,663.90
  6. Step 6: Final answer
    x = 520,132.86

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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.