Home / 670,881.40-1,006,872.90-665,632.60

Finding the Fourth Proportional to 670,881.40, 1,006,872.90 and 665,632.60

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Solution

The fourth proportional to 670,881.40, 1,006,872.90 and 665,632.60 is: 998,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,881.40 : 1,006,872.90 = 665,632.60 : x
  2. Step 2: Convert to fraction form
    670,881.40/1,006,872.90 = 665,632.60/x
  3. Step 3: Cross multiply
    670,881.40x = 1,006,872.90 × 665,632.60
  4. Step 4: Simplify right side
    670,881.40x = 670,207,426,296.54
  5. Step 5: Solve for x
    x = 670,207,426,296.54/670,881.40
  6. Step 6: Final answer
    x = 998,995.39

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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.