Home / 670,877.40-1,006,866.90-665,628.60

Finding the Fourth Proportional to 670,877.40, 1,006,866.90 and 665,628.60

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Solution

The fourth proportional to 670,877.40, 1,006,866.90 and 665,628.60 is: 998,989.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,877.40 : 1,006,866.90 = 665,628.60 : x
  2. Step 2: Convert to fraction form
    670,877.40/1,006,866.90 = 665,628.60/x
  3. Step 3: Cross multiply
    670,877.40x = 1,006,866.90 × 665,628.60
  4. Step 4: Simplify right side
    670,877.40x = 670,199,405,033.34
  5. Step 5: Solve for x
    x = 670,199,405,033.34/670,877.40
  6. Step 6: Final answer
    x = 998,989.39

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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.