Home / 809,307.52-1,214,117.60-310,632.64

Finding the Fourth Proportional to 809,307.52, 1,214,117.60 and 310,632.64

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Solution

The fourth proportional to 809,307.52, 1,214,117.60 and 310,632.64 is: 466,008.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,307.52 : 1,214,117.60 = 310,632.64 : x
  2. Step 2: Convert to fraction form
    809,307.52/1,214,117.60 = 310,632.64/x
  3. Step 3: Cross multiply
    809,307.52x = 1,214,117.60 × 310,632.64
  4. Step 4: Simplify right side
    809,307.52x = 377,144,555,358.46
  5. Step 5: Solve for x
    x = 377,144,555,358.46/809,307.52
  6. Step 6: Final answer
    x = 466,008.96

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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.