Home / 879,672.90-1,318,918.05-346,919.70

Finding the Fourth Proportional to 879,672.90, 1,318,918.05 and 346,919.70

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Solution

The fourth proportional to 879,672.90, 1,318,918.05 and 346,919.70 is: 520,146.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,672.90 : 1,318,918.05 = 346,919.70 : x
  2. Step 2: Convert to fraction form
    879,672.90/1,318,918.05 = 346,919.70/x
  3. Step 3: Cross multiply
    879,672.90x = 1,318,918.05 × 346,919.70
  4. Step 4: Simplify right side
    879,672.90x = 457,558,654,230.59
  5. Step 5: Solve for x
    x = 457,558,654,230.59/879,672.90
  6. Step 6: Final answer
    x = 520,146.36

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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.