Home / 689,146.32-1,031,507.76-368,497.32

Finding the Fourth Proportional to 689,146.32, 1,031,507.76 and 368,497.32

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Solution

The fourth proportional to 689,146.32, 1,031,507.76 and 368,497.32 is: 551,563.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,146.32 : 1,031,507.76 = 368,497.32 : x
  2. Step 2: Convert to fraction form
    689,146.32/1,031,507.76 = 368,497.32/x
  3. Step 3: Cross multiply
    689,146.32x = 1,031,507.76 × 368,497.32
  4. Step 4: Simplify right side
    689,146.32x = 380,107,845,119.20
  5. Step 5: Solve for x
    x = 380,107,845,119.20/689,146.32
  6. Step 6: Final answer
    x = 551,563.34

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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.