Home / 1,315,379.76-1,973,696.22-911,194.62

Finding the Fourth Proportional to 1,315,379.76, 1,973,696.22 and 911,194.62

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Solution

The fourth proportional to 1,315,379.76, 1,973,696.22 and 911,194.62 is: 1,367,225.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,379.76 : 1,973,696.22 = 911,194.62 : x
  2. Step 2: Convert to fraction form
    1,315,379.76/1,973,696.22 = 911,194.62/x
  3. Step 3: Cross multiply
    1,315,379.76x = 1,973,696.22 × 911,194.62
  4. Step 4: Simplify right side
    1,315,379.76x = 1,798,421,377,178.34
  5. Step 5: Solve for x
    x = 1,798,421,377,178.34/1,315,379.76
  6. Step 6: Final answer
    x = 1,367,225.98

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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.