Home / 818,890.28-1,130,103.48-456,314.60

Finding the Fourth Proportional to 818,890.28, 1,130,103.48 and 456,314.60

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Solution

The fourth proportional to 818,890.28, 1,130,103.48 and 456,314.60 is: 629,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,890.28 : 1,130,103.48 = 456,314.60 : x
  2. Step 2: Convert to fraction form
    818,890.28/1,130,103.48 = 456,314.60/x
  3. Step 3: Cross multiply
    818,890.28x = 1,130,103.48 × 456,314.60
  4. Step 4: Simplify right side
    818,890.28x = 515,682,717,434.81
  5. Step 5: Solve for x
    x = 515,682,717,434.81/818,890.28
  6. Step 6: Final answer
    x = 629,733.59

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Double scale
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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.