Home / 821,803.76-1,232,982.43-517,844.93

Finding the Fourth Proportional to 821,803.76, 1,232,982.43 and 517,844.93

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Solution

The fourth proportional to 821,803.76, 1,232,982.43 and 517,844.93 is: 776,941.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,803.76 : 1,232,982.43 = 517,844.93 : x
  2. Step 2: Convert to fraction form
    821,803.76/1,232,982.43 = 517,844.93/x
  3. Step 3: Cross multiply
    821,803.76x = 1,232,982.43 × 517,844.93
  4. Step 4: Simplify right side
    821,803.76x = 638,493,708,473.35
  5. Step 5: Solve for x
    x = 638,493,708,473.35/821,803.76
  6. Step 6: Final answer
    x = 776,941.82

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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.