Home / 672,309.10-1,008,439.35-272,938.60

Finding the Fourth Proportional to 672,309.10, 1,008,439.35 and 272,938.60

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Solution

The fourth proportional to 672,309.10, 1,008,439.35 and 272,938.60 is: 409,398.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,309.10 : 1,008,439.35 = 272,938.60 : x
  2. Step 2: Convert to fraction form
    672,309.10/1,008,439.35 = 272,938.60/x
  3. Step 3: Cross multiply
    672,309.10x = 1,008,439.35 × 272,938.60
  4. Step 4: Simplify right side
    672,309.10x = 275,242,024,373.91
  5. Step 5: Solve for x
    x = 275,242,024,373.91/672,309.10
  6. Step 6: Final answer
    x = 409,398.03

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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.