Home / 700,715.76-1,051,859.88-280,284.72

Finding the Fourth Proportional to 700,715.76, 1,051,859.88 and 280,284.72

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Solution

The fourth proportional to 700,715.76, 1,051,859.88 and 280,284.72 is: 420,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,715.76 : 1,051,859.88 = 280,284.72 : x
  2. Step 2: Convert to fraction form
    700,715.76/1,051,859.88 = 280,284.72/x
  3. Step 3: Cross multiply
    700,715.76x = 1,051,859.88 × 280,284.72
  4. Step 4: Simplify right side
    700,715.76x = 294,820,251,945.03
  5. Step 5: Solve for x
    x = 294,820,251,945.03/700,715.76
  6. Step 6: Final answer
    x = 420,741.57

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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.