Home / 1,294,358.40-1,942,689.60-761,212.80

Finding the Fourth Proportional to 1,294,358.40, 1,942,689.60 and 761,212.80

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Solution

The fourth proportional to 1,294,358.40, 1,942,689.60 and 761,212.80 is: 1,142,496.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,358.40 : 1,942,689.60 = 761,212.80 : x
  2. Step 2: Convert to fraction form
    1,294,358.40/1,942,689.60 = 761,212.80/x
  3. Step 3: Cross multiply
    1,294,358.40x = 1,942,689.60 × 761,212.80
  4. Step 4: Simplify right side
    1,294,358.40x = 1,478,800,189,946.88
  5. Step 5: Solve for x
    x = 1,478,800,189,946.88/1,294,358.40
  6. Step 6: Final answer
    x = 1,142,496.69

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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.