Home / 1,309,683.60-1,960,588.80-776,930.40

Finding the Fourth Proportional to 1,309,683.60, 1,960,588.80 and 776,930.40

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Solution

The fourth proportional to 1,309,683.60, 1,960,588.80 and 776,930.40 is: 1,163,060.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,683.60 : 1,960,588.80 = 776,930.40 : x
  2. Step 2: Convert to fraction form
    1,309,683.60/1,960,588.80 = 776,930.40/x
  3. Step 3: Cross multiply
    1,309,683.60x = 1,960,588.80 × 776,930.40
  4. Step 4: Simplify right side
    1,309,683.60x = 1,523,241,040,619.52
  5. Step 5: Solve for x
    x = 1,523,241,040,619.52/1,309,683.60
  6. Step 6: Final answer
    x = 1,163,060.33

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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.