Home / 563,512.15-777,645.16-308,862.55

Finding the Fourth Proportional to 563,512.15, 777,645.16 and 308,862.55

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Solution

The fourth proportional to 563,512.15, 777,645.16 and 308,862.55 is: 426,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,512.15 : 777,645.16 = 308,862.55 : x
  2. Step 2: Convert to fraction form
    563,512.15/777,645.16 = 308,862.55/x
  3. Step 3: Cross multiply
    563,512.15x = 777,645.16 × 308,862.55
  4. Step 4: Simplify right side
    563,512.15x = 240,185,467,112.76
  5. Step 5: Solve for x
    x = 240,185,467,112.76/563,512.15
  6. Step 6: Final answer
    x = 426,229.44

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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.