Home / 859,528.72-1,289,293.04-326,926.72

Finding the Fourth Proportional to 859,528.72, 1,289,293.04 and 326,926.72

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Solution

The fourth proportional to 859,528.72, 1,289,293.04 and 326,926.72 is: 490,390.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,528.72 : 1,289,293.04 = 326,926.72 : x
  2. Step 2: Convert to fraction form
    859,528.72/1,289,293.04 = 326,926.72/x
  3. Step 3: Cross multiply
    859,528.72x = 1,289,293.04 × 326,926.72
  4. Step 4: Simplify right side
    859,528.72x = 421,504,344,686.03
  5. Step 5: Solve for x
    x = 421,504,344,686.03/859,528.72
  6. Step 6: Final answer
    x = 490,390.06

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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.