Home / 1,281,671.30-1,768,701.62-722,821.32

Finding the Fourth Proportional to 1,281,671.30, 1,768,701.62 and 722,821.32

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Solution

The fourth proportional to 1,281,671.30, 1,768,701.62 and 722,821.32 is: 997,490.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,671.30 : 1,768,701.62 = 722,821.32 : x
  2. Step 2: Convert to fraction form
    1,281,671.30/1,768,701.62 = 722,821.32/x
  3. Step 3: Cross multiply
    1,281,671.30x = 1,768,701.62 × 722,821.32
  4. Step 4: Simplify right side
    1,281,671.30x = 1,278,455,241,461.59
  5. Step 5: Solve for x
    x = 1,278,455,241,461.59/1,281,671.30
  6. Step 6: Final answer
    x = 997,490.73

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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.