Home / 828,129.87-1,142,740.44-484,046.46

Finding the Fourth Proportional to 828,129.87, 1,142,740.44 and 484,046.46

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Solution

The fourth proportional to 828,129.87, 1,142,740.44 and 484,046.46 is: 667,938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,129.87 : 1,142,740.44 = 484,046.46 : x
  2. Step 2: Convert to fraction form
    828,129.87/1,142,740.44 = 484,046.46/x
  3. Step 3: Cross multiply
    828,129.87x = 1,142,740.44 × 484,046.46
  4. Step 4: Simplify right side
    828,129.87x = 553,139,464,680.84
  5. Step 5: Solve for x
    x = 553,139,464,680.84/828,129.87
  6. Step 6: Final answer
    x = 667,938.07

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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.