Home / 810,624.92-1,215,909.73-384,364.95

Finding the Fourth Proportional to 810,624.92, 1,215,909.73 and 384,364.95

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Solution

The fourth proportional to 810,624.92, 1,215,909.73 and 384,364.95 is: 576,534.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,624.92 : 1,215,909.73 = 384,364.95 : x
  2. Step 2: Convert to fraction form
    810,624.92/1,215,909.73 = 384,364.95/x
  3. Step 3: Cross multiply
    810,624.92x = 1,215,909.73 × 384,364.95
  4. Step 4: Simplify right side
    810,624.92x = 467,353,078,496.76
  5. Step 5: Solve for x
    x = 467,353,078,496.76/810,624.92
  6. Step 6: Final answer
    x = 576,534.31

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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.