Home / 785,490.00-1,178,327.27-280,122.82

Finding the Fourth Proportional to 785,490.00, 1,178,327.27 and 280,122.82

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Solution

The fourth proportional to 785,490.00, 1,178,327.27 and 280,122.82 is: 420,217.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,490.00 : 1,178,327.27 = 280,122.82 : x
  2. Step 2: Convert to fraction form
    785,490.00/1,178,327.27 = 280,122.82/x
  3. Step 3: Cross multiply
    785,490.00x = 1,178,327.27 × 280,122.82
  4. Step 4: Simplify right side
    785,490.00x = 330,076,355,509.79
  5. Step 5: Solve for x
    x = 330,076,355,509.79/785,490.00
  6. Step 6: Final answer
    x = 420,217.13

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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.