Home / 785,963.90-1,179,088.40-449,384.06

Finding the Fourth Proportional to 785,963.90, 1,179,088.40 and 449,384.06

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Solution

The fourth proportional to 785,963.90, 1,179,088.40 and 449,384.06 is: 674,157.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,963.90 : 1,179,088.40 = 449,384.06 : x
  2. Step 2: Convert to fraction form
    785,963.90/1,179,088.40 = 449,384.06/x
  3. Step 3: Cross multiply
    785,963.90x = 1,179,088.40 × 449,384.06
  4. Step 4: Simplify right side
    785,963.90x = 529,863,527,518.92
  5. Step 5: Solve for x
    x = 529,863,527,518.92/785,963.90
  6. Step 6: Final answer
    x = 674,157.59

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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.