Home / 780,436.80-1,169,877.60-358,977.60

Finding the Fourth Proportional to 780,436.80, 1,169,877.60 and 358,977.60

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Solution

The fourth proportional to 780,436.80, 1,169,877.60 and 358,977.60 is: 538,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,436.80 : 1,169,877.60 = 358,977.60 : x
  2. Step 2: Convert to fraction form
    780,436.80/1,169,877.60 = 358,977.60/x
  3. Step 3: Cross multiply
    780,436.80x = 1,169,877.60 × 358,977.60
  4. Step 4: Simplify right side
    780,436.80x = 419,959,853,141.76
  5. Step 5: Solve for x
    x = 419,959,853,141.76/780,436.80
  6. Step 6: Final answer
    x = 538,108.73

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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.