Home / 693,019.28-1,039,675.80-219,642.32

Finding the Fourth Proportional to 693,019.28, 1,039,675.80 and 219,642.32

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Solution

The fourth proportional to 693,019.28, 1,039,675.80 and 219,642.32 is: 329,510.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,019.28 : 1,039,675.80 = 219,642.32 : x
  2. Step 2: Convert to fraction form
    693,019.28/1,039,675.80 = 219,642.32/x
  3. Step 3: Cross multiply
    693,019.28x = 1,039,675.80 × 219,642.32
  4. Step 4: Simplify right side
    693,019.28x = 228,356,804,759.86
  5. Step 5: Solve for x
    x = 228,356,804,759.86/693,019.28
  6. Step 6: Final answer
    x = 329,510.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.