Home / 778,917.40-1,168,376.10-731,678.20

Finding the Fourth Proportional to 778,917.40, 1,168,376.10 and 731,678.20

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Solution

The fourth proportional to 778,917.40, 1,168,376.10 and 731,678.20 is: 1,097,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,917.40 : 1,168,376.10 = 731,678.20 : x
  2. Step 2: Convert to fraction form
    778,917.40/1,168,376.10 = 731,678.20/x
  3. Step 3: Cross multiply
    778,917.40x = 1,168,376.10 × 731,678.20
  4. Step 4: Simplify right side
    778,917.40x = 854,875,321,771.02
  5. Step 5: Solve for x
    x = 854,875,321,771.02/778,917.40
  6. Step 6: Final answer
    x = 1,097,517.30

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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.