Home / 528,622.20-791,313.30-291,238.20

Finding the Fourth Proportional to 528,622.20, 791,313.30 and 291,238.20

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Solution

The fourth proportional to 528,622.20, 791,313.30 and 291,238.20 is: 435,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,622.20 : 791,313.30 = 291,238.20 : x
  2. Step 2: Convert to fraction form
    528,622.20/791,313.30 = 291,238.20/x
  3. Step 3: Cross multiply
    528,622.20x = 791,313.30 × 291,238.20
  4. Step 4: Simplify right side
    528,622.20x = 230,460,661,128.06
  5. Step 5: Solve for x
    x = 230,460,661,128.06/528,622.20
  6. Step 6: Final answer
    x = 435,964.78

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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.