Home / 1,245,682.32-1,719,041.36-672,722.40

Finding the Fourth Proportional to 1,245,682.32, 1,719,041.36 and 672,722.40

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Solution

The fourth proportional to 1,245,682.32, 1,719,041.36 and 672,722.40 is: 928,356.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,682.32 : 1,719,041.36 = 672,722.40 : x
  2. Step 2: Convert to fraction form
    1,245,682.32/1,719,041.36 = 672,722.40/x
  3. Step 3: Cross multiply
    1,245,682.32x = 1,719,041.36 × 672,722.40
  4. Step 4: Simplify right side
    1,245,682.32x = 1,156,437,629,398.46
  5. Step 5: Solve for x
    x = 1,156,437,629,398.46/1,245,682.32
  6. Step 6: Final answer
    x = 928,356.78

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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.