Home / 765,816.58-1,056,809.36-479,494.54

Finding the Fourth Proportional to 765,816.58, 1,056,809.36 and 479,494.54

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Solution

The fourth proportional to 765,816.58, 1,056,809.36 and 479,494.54 is: 661,691.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,816.58 : 1,056,809.36 = 479,494.54 : x
  2. Step 2: Convert to fraction form
    765,816.58/1,056,809.36 = 479,494.54/x
  3. Step 3: Cross multiply
    765,816.58x = 1,056,809.36 × 479,494.54
  4. Step 4: Simplify right side
    765,816.58x = 506,734,317,940.89
  5. Step 5: Solve for x
    x = 506,734,317,940.89/765,816.58
  6. Step 6: Final answer
    x = 661,691.50

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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.