Home / 1,245,648.19-1,718,994.48-672,688.30

Finding the Fourth Proportional to 1,245,648.19, 1,718,994.48 and 672,688.30

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Solution

The fourth proportional to 1,245,648.19, 1,718,994.48 and 672,688.30 is: 928,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,648.19 : 1,718,994.48 = 672,688.30 : x
  2. Step 2: Convert to fraction form
    1,245,648.19/1,718,994.48 = 672,688.30/x
  3. Step 3: Cross multiply
    1,245,648.19x = 1,718,994.48 × 672,688.30
  4. Step 4: Simplify right side
    1,245,648.19x = 1,156,347,474,460.58
  5. Step 5: Solve for x
    x = 1,156,347,474,460.58/1,245,648.19
  6. Step 6: Final answer
    x = 928,309.84

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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.