Home / 765,630.54-1,056,631.16-443,346.32

Finding the Fourth Proportional to 765,630.54, 1,056,631.16 and 443,346.32

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Solution

The fourth proportional to 765,630.54, 1,056,631.16 and 443,346.32 is: 611,853.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,630.54 : 1,056,631.16 = 443,346.32 : x
  2. Step 2: Convert to fraction form
    765,630.54/1,056,631.16 = 443,346.32/x
  3. Step 3: Cross multiply
    765,630.54x = 1,056,631.16 × 443,346.32
  4. Step 4: Simplify right side
    765,630.54x = 468,453,540,133.28
  5. Step 5: Solve for x
    x = 468,453,540,133.28/765,630.54
  6. Step 6: Final answer
    x = 611,853.26

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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.