Home / 1,280,770.47-1,767,503.90-699,980.86

Finding the Fourth Proportional to 1,280,770.47, 1,767,503.90 and 699,980.86

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Solution

The fourth proportional to 1,280,770.47, 1,767,503.90 and 699,980.86 is: 965,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,770.47 : 1,767,503.90 = 699,980.86 : x
  2. Step 2: Convert to fraction form
    1,280,770.47/1,767,503.90 = 699,980.86/x
  3. Step 3: Cross multiply
    1,280,770.47x = 1,767,503.90 × 699,980.86
  4. Step 4: Simplify right side
    1,280,770.47x = 1,237,218,899,975.35
  5. Step 5: Solve for x
    x = 1,237,218,899,975.35/1,280,770.47
  6. Step 6: Final answer
    x = 965,995.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.