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Finding the Fourth Proportional to 522,402.85, 720,923.67 and 304,605.67

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Solution

The fourth proportional to 522,402.85, 720,923.67 and 304,605.67 is: 420,360.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,402.85 : 720,923.67 = 304,605.67 : x
  2. Step 2: Convert to fraction form
    522,402.85/720,923.67 = 304,605.67/x
  3. Step 3: Cross multiply
    522,402.85x = 720,923.67 × 304,605.67
  4. Step 4: Simplify right side
    522,402.85x = 219,597,437,519.21
  5. Step 5: Solve for x
    x = 219,597,437,519.21/522,402.85
  6. Step 6: Final answer
    x = 420,360.34

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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.