Home / 818,865.12-1,130,041.92-479,340.48

Finding the Fourth Proportional to 818,865.12, 1,130,041.92 and 479,340.48

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Solution

The fourth proportional to 818,865.12, 1,130,041.92 and 479,340.48 is: 661,494.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,865.12 : 1,130,041.92 = 479,340.48 : x
  2. Step 2: Convert to fraction form
    818,865.12/1,130,041.92 = 479,340.48/x
  3. Step 3: Cross multiply
    818,865.12x = 1,130,041.92 × 479,340.48
  4. Step 4: Simplify right side
    818,865.12x = 541,674,836,352.92
  5. Step 5: Solve for x
    x = 541,674,836,352.92/818,865.12
  6. Step 6: Final answer
    x = 661,494.58

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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.