Home / 1,384,392.64-1,910,458.22-772,538.90

Finding the Fourth Proportional to 1,384,392.64, 1,910,458.22 and 772,538.90

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Solution

The fourth proportional to 1,384,392.64, 1,910,458.22 and 772,538.90 is: 1,066,101.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,392.64 : 1,910,458.22 = 772,538.90 : x
  2. Step 2: Convert to fraction form
    1,384,392.64/1,910,458.22 = 772,538.90/x
  3. Step 3: Cross multiply
    1,384,392.64x = 1,910,458.22 × 772,538.90
  4. Step 4: Simplify right side
    1,384,392.64x = 1,475,903,291,774.76
  5. Step 5: Solve for x
    x = 1,475,903,291,774.76/1,384,392.64
  6. Step 6: Final answer
    x = 1,066,101.66

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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.