Home / 872,190.60-1,308,113.10-422,910.60

Finding the Fourth Proportional to 872,190.60, 1,308,113.10 and 422,910.60

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Solution

The fourth proportional to 872,190.60, 1,308,113.10 and 422,910.60 is: 634,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,190.60 : 1,308,113.10 = 422,910.60 : x
  2. Step 2: Convert to fraction form
    872,190.60/1,308,113.10 = 422,910.60/x
  3. Step 3: Cross multiply
    872,190.60x = 1,308,113.10 × 422,910.60
  4. Step 4: Simplify right side
    872,190.60x = 553,214,895,988.86
  5. Step 5: Solve for x
    x = 553,214,895,988.86/872,190.60
  6. Step 6: Final answer
    x = 634,282.11

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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.