Home / 882,821.75-1,218,425.24-520,129.67

Finding the Fourth Proportional to 882,821.75, 1,218,425.24 and 520,129.67

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Solution

The fourth proportional to 882,821.75, 1,218,425.24 and 520,129.67 is: 717,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,821.75 : 1,218,425.24 = 520,129.67 : x
  2. Step 2: Convert to fraction form
    882,821.75/1,218,425.24 = 520,129.67/x
  3. Step 3: Cross multiply
    882,821.75x = 1,218,425.24 × 520,129.67
  4. Step 4: Simplify right side
    882,821.75x = 633,739,118,000.87
  5. Step 5: Solve for x
    x = 633,739,118,000.87/882,821.75
  6. Step 6: Final answer
    x = 717,856.26

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1.5x scale

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.