Home / 1,245,688.91-1,719,050.63-672,729.03

Finding the Fourth Proportional to 1,245,688.91, 1,719,050.63 and 672,729.03

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Solution

The fourth proportional to 1,245,688.91, 1,719,050.63 and 672,729.03 is: 928,366.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,688.91 : 1,719,050.63 = 672,729.03 : x
  2. Step 2: Convert to fraction form
    1,245,688.91/1,719,050.63 = 672,729.03/x
  3. Step 3: Cross multiply
    1,245,688.91x = 1,719,050.63 × 672,729.03
  4. Step 4: Simplify right side
    1,245,688.91x = 1,156,455,262,840.79
  5. Step 5: Solve for x
    x = 1,156,455,262,840.79/1,245,688.91
  6. Step 6: Final answer
    x = 928,366.03

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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.