Home / 767,986.60-1,151,979.90-711,999.40

Finding the Fourth Proportional to 767,986.60, 1,151,979.90 and 711,999.40

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Solution

The fourth proportional to 767,986.60, 1,151,979.90 and 711,999.40 is: 1,067,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,986.60 : 1,151,979.90 = 711,999.40 : x
  2. Step 2: Convert to fraction form
    767,986.60/1,151,979.90 = 711,999.40/x
  3. Step 3: Cross multiply
    767,986.60x = 1,151,979.90 × 711,999.40
  4. Step 4: Simplify right side
    767,986.60x = 820,208,997,612.06
  5. Step 5: Solve for x
    x = 820,208,997,612.06/767,986.60
  6. Step 6: Final answer
    x = 1,067,999.10

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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.