Home / 782,512.01-1,079,877.77-455,816.63

Finding the Fourth Proportional to 782,512.01, 1,079,877.77 and 455,816.63

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Solution

The fourth proportional to 782,512.01, 1,079,877.77 and 455,816.63 is: 629,033.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,512.01 : 1,079,877.77 = 455,816.63 : x
  2. Step 2: Convert to fraction form
    782,512.01/1,079,877.77 = 455,816.63/x
  3. Step 3: Cross multiply
    782,512.01x = 1,079,877.77 × 455,816.63
  4. Step 4: Simplify right side
    782,512.01x = 492,226,238,254.84
  5. Step 5: Solve for x
    x = 492,226,238,254.84/782,512.01
  6. Step 6: Final answer
    x = 629,033.47

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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.