Home / 671,649.40-1,008,024.90-666,400.60

Finding the Fourth Proportional to 671,649.40, 1,008,024.90 and 666,400.60

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Solution

The fourth proportional to 671,649.40, 1,008,024.90 and 666,400.60 is: 1,000,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,649.40 : 1,008,024.90 = 666,400.60 : x
  2. Step 2: Convert to fraction form
    671,649.40/1,008,024.90 = 666,400.60/x
  3. Step 3: Cross multiply
    671,649.40x = 1,008,024.90 × 666,400.60
  4. Step 4: Simplify right side
    671,649.40x = 671,748,398,174.94
  5. Step 5: Solve for x
    x = 671,748,398,174.94/671,649.40
  6. Step 6: Final answer
    x = 1,000,147.40

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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.