Home / 831,764.40-1,247,646.60-779,276.40

Finding the Fourth Proportional to 831,764.40, 1,247,646.60 and 779,276.40

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Solution

The fourth proportional to 831,764.40, 1,247,646.60 and 779,276.40 is: 1,168,914.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,764.40 : 1,247,646.60 = 779,276.40 : x
  2. Step 2: Convert to fraction form
    831,764.40/1,247,646.60 = 779,276.40/x
  3. Step 3: Cross multiply
    831,764.40x = 1,247,646.60 × 779,276.40
  4. Step 4: Simplify right side
    831,764.40x = 972,261,550,920.24
  5. Step 5: Solve for x
    x = 972,261,550,920.24/831,764.40
  6. Step 6: Final answer
    x = 1,168,914.60

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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.