Home / 780,397.84-1,170,597.23-219,432.34

Finding the Fourth Proportional to 780,397.84, 1,170,597.23 and 219,432.34

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Solution

The fourth proportional to 780,397.84, 1,170,597.23 and 219,432.34 is: 329,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,397.84 : 1,170,597.23 = 219,432.34 : x
  2. Step 2: Convert to fraction form
    780,397.84/1,170,597.23 = 219,432.34/x
  3. Step 3: Cross multiply
    780,397.84x = 1,170,597.23 × 219,432.34
  4. Step 4: Simplify right side
    780,397.84x = 256,866,889,376.42
  5. Step 5: Solve for x
    x = 256,866,889,376.42/780,397.84
  6. Step 6: Final answer
    x = 329,148.64

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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.