Home / 671,983.40-1,007,975.10-620,661.80

Finding the Fourth Proportional to 671,983.40, 1,007,975.10 and 620,661.80

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Solution

The fourth proportional to 671,983.40, 1,007,975.10 and 620,661.80 is: 930,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,983.40 : 1,007,975.10 = 620,661.80 : x
  2. Step 2: Convert to fraction form
    671,983.40/1,007,975.10 = 620,661.80/x
  3. Step 3: Cross multiply
    671,983.40x = 1,007,975.10 × 620,661.80
  4. Step 4: Simplify right side
    671,983.40x = 625,611,639,921.18
  5. Step 5: Solve for x
    x = 625,611,639,921.18/671,983.40
  6. Step 6: Final answer
    x = 930,992.70

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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.