Home / 671,966.40-1,007,949.60-620,644.80

Finding the Fourth Proportional to 671,966.40, 1,007,949.60 and 620,644.80

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Solution

The fourth proportional to 671,966.40, 1,007,949.60 and 620,644.80 is: 930,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,966.40 : 1,007,949.60 = 620,644.80 : x
  2. Step 2: Convert to fraction form
    671,966.40/1,007,949.60 = 620,644.80/x
  3. Step 3: Cross multiply
    671,966.40x = 1,007,949.60 × 620,644.80
  4. Step 4: Simplify right side
    671,966.40x = 625,578,677,902.08
  5. Step 5: Solve for x
    x = 625,578,677,902.08/671,966.40
  6. Step 6: Final answer
    x = 930,967.20

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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.