Home / 776,520.60-1,071,588.24-449,878.14

Finding the Fourth Proportional to 776,520.60, 1,071,588.24 and 449,878.14

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Solution

The fourth proportional to 776,520.60, 1,071,588.24 and 449,878.14 is: 620,825.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,520.60 : 1,071,588.24 = 449,878.14 : x
  2. Step 2: Convert to fraction form
    776,520.60/1,071,588.24 = 449,878.14/x
  3. Step 3: Cross multiply
    776,520.60x = 1,071,588.24 × 449,878.14
  4. Step 4: Simplify right side
    776,520.60x = 482,084,124,257.07
  5. Step 5: Solve for x
    x = 482,084,124,257.07/776,520.60
  6. Step 6: Final answer
    x = 620,825.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.