Home / 671,667.90-1,008,052.65-666,419.10

Finding the Fourth Proportional to 671,667.90, 1,008,052.65 and 666,419.10

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Solution

The fourth proportional to 671,667.90, 1,008,052.65 and 666,419.10 is: 1,000,175.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,667.90 : 1,008,052.65 = 666,419.10 : x
  2. Step 2: Convert to fraction form
    671,667.90/1,008,052.65 = 666,419.10/x
  3. Step 3: Cross multiply
    671,667.90x = 1,008,052.65 × 666,419.10
  4. Step 4: Simplify right side
    671,667.90x = 671,785,539,765.62
  5. Step 5: Solve for x
    x = 671,785,539,765.62/671,667.90
  6. Step 6: Final answer
    x = 1,000,175.15

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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.