Home / 671,971.40-1,007,957.10-620,649.80

Finding the Fourth Proportional to 671,971.40, 1,007,957.10 and 620,649.80

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Solution

The fourth proportional to 671,971.40, 1,007,957.10 and 620,649.80 is: 930,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,971.40 : 1,007,957.10 = 620,649.80 : x
  2. Step 2: Convert to fraction form
    671,971.40/1,007,957.10 = 620,649.80/x
  3. Step 3: Cross multiply
    671,971.40x = 1,007,957.10 × 620,649.80
  4. Step 4: Simplify right side
    671,971.40x = 625,588,372,523.58
  5. Step 5: Solve for x
    x = 625,588,372,523.58/671,971.40
  6. Step 6: Final answer
    x = 930,974.70

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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.