Home / 1,384,407.08-1,910,478.20-772,553.32

Finding the Fourth Proportional to 1,384,407.08, 1,910,478.20 and 772,553.32

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Solution

The fourth proportional to 1,384,407.08, 1,910,478.20 and 772,553.32 is: 1,066,121.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,407.08 : 1,910,478.20 = 772,553.32 : x
  2. Step 2: Convert to fraction form
    1,384,407.08/1,910,478.20 = 772,553.32/x
  3. Step 3: Cross multiply
    1,384,407.08x = 1,910,478.20 × 772,553.32
  4. Step 4: Simplify right side
    1,384,407.08x = 1,475,946,276,197.62
  5. Step 5: Solve for x
    x = 1,475,946,276,197.62/1,384,407.08
  6. Step 6: Final answer
    x = 1,066,121.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.