Home / 1,276,913.60-1,915,370.40-878,782.40

Finding the Fourth Proportional to 1,276,913.60, 1,915,370.40 and 878,782.40

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Solution

The fourth proportional to 1,276,913.60, 1,915,370.40 and 878,782.40 is: 1,318,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,913.60 : 1,915,370.40 = 878,782.40 : x
  2. Step 2: Convert to fraction form
    1,276,913.60/1,915,370.40 = 878,782.40/x
  3. Step 3: Cross multiply
    1,276,913.60x = 1,915,370.40 × 878,782.40
  4. Step 4: Simplify right side
    1,276,913.60x = 1,683,193,797,000.96
  5. Step 5: Solve for x
    x = 1,683,193,797,000.96/1,276,913.60
  6. Step 6: Final answer
    x = 1,318,173.60

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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.