Home / 879,414-1,318,784.73-479,841.18

Finding the Fourth Proportional to 879,414, 1,318,784.73 and 479,841.18

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Solution

The fourth proportional to 879,414, 1,318,784.73 and 479,841.18 is: 719,578.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,414 : 1,318,784.73 = 479,841.18 : x
  2. Step 2: Convert to fraction form
    879,414/1,318,784.73 = 479,841.18/x
  3. Step 3: Cross multiply
    879,414x = 1,318,784.73 × 479,841.18
  4. Step 4: Simplify right side
    879,414x = 632,807,221,009.18
  5. Step 5: Solve for x
    x = 632,807,221,009.18/879,414
  6. Step 6: Final answer
    x = 719,578.29

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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.