Home / 810,688.50-1,216,023.03-761,364.54

Finding the Fourth Proportional to 810,688.50, 1,216,023.03 and 761,364.54

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Solution

The fourth proportional to 810,688.50, 1,216,023.03 and 761,364.54 is: 1,142,037.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,688.50 : 1,216,023.03 = 761,364.54 : x
  2. Step 2: Convert to fraction form
    810,688.50/1,216,023.03 = 761,364.54/x
  3. Step 3: Cross multiply
    810,688.50x = 1,216,023.03 × 761,364.54
  4. Step 4: Simplify right side
    810,688.50x = 925,836,814,865.36
  5. Step 5: Solve for x
    x = 925,836,814,865.36/810,688.50
  6. Step 6: Final answer
    x = 1,142,037.68

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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.