Home / 672,308.60-1,008,438.60-272,938.10

Finding the Fourth Proportional to 672,308.60, 1,008,438.60 and 272,938.10

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Solution

The fourth proportional to 672,308.60, 1,008,438.60 and 272,938.10 is: 409,397.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,308.60 : 1,008,438.60 = 272,938.10 : x
  2. Step 2: Convert to fraction form
    672,308.60/1,008,438.60 = 272,938.10/x
  3. Step 3: Cross multiply
    672,308.60x = 1,008,438.60 × 272,938.10
  4. Step 4: Simplify right side
    672,308.60x = 275,241,315,450.66
  5. Step 5: Solve for x
    x = 275,241,315,450.66/672,308.60
  6. Step 6: Final answer
    x = 409,397.28

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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.