Home / 810,220.68-1,118,090.88-447,659.64

Finding the Fourth Proportional to 810,220.68, 1,118,090.88 and 447,659.64

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Solution

The fourth proportional to 810,220.68, 1,118,090.88 and 447,659.64 is: 617,762.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,220.68 : 1,118,090.88 = 447,659.64 : x
  2. Step 2: Convert to fraction form
    810,220.68/1,118,090.88 = 447,659.64/x
  3. Step 3: Cross multiply
    810,220.68x = 1,118,090.88 × 447,659.64
  4. Step 4: Simplify right side
    810,220.68x = 500,524,160,828.08
  5. Step 5: Solve for x
    x = 500,524,160,828.08/810,220.68
  6. Step 6: Final answer
    x = 617,762.76

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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.