Home / 765,631.54-1,056,632.54-443,347.32

Finding the Fourth Proportional to 765,631.54, 1,056,632.54 and 443,347.32

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Solution

The fourth proportional to 765,631.54, 1,056,632.54 and 443,347.32 is: 611,854.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,631.54 : 1,056,632.54 = 443,347.32 : x
  2. Step 2: Convert to fraction form
    765,631.54/1,056,632.54 = 443,347.32/x
  3. Step 3: Cross multiply
    765,631.54x = 1,056,632.54 × 443,347.32
  4. Step 4: Simplify right side
    765,631.54x = 468,455,204,833.79
  5. Step 5: Solve for x
    x = 468,455,204,833.79/765,631.54
  6. Step 6: Final answer
    x = 611,854.63

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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.