Home / 916,074.60-1,374,111.90-769,108.20

Finding the Fourth Proportional to 916,074.60, 1,374,111.90 and 769,108.20

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Solution

The fourth proportional to 916,074.60, 1,374,111.90 and 769,108.20 is: 1,153,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,074.60 : 1,374,111.90 = 769,108.20 : x
  2. Step 2: Convert to fraction form
    916,074.60/1,374,111.90 = 769,108.20/x
  3. Step 3: Cross multiply
    916,074.60x = 1,374,111.90 × 769,108.20
  4. Step 4: Simplify right side
    916,074.60x = 1,056,840,730,007.58
  5. Step 5: Solve for x
    x = 1,056,840,730,007.58/916,074.60
  6. Step 6: Final answer
    x = 1,153,662.30

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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.