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Finding the Fourth Proportional to 500,885.28, 751,090.08 and 290,587.68

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Solution

The fourth proportional to 500,885.28, 751,090.08 and 290,587.68 is: 435,743.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,885.28 : 751,090.08 = 290,587.68 : x
  2. Step 2: Convert to fraction form
    500,885.28/751,090.08 = 290,587.68/x
  3. Step 3: Cross multiply
    500,885.28x = 751,090.08 × 290,587.68
  4. Step 4: Simplify right side
    500,885.28x = 218,257,523,818.21
  5. Step 5: Solve for x
    x = 218,257,523,818.21/500,885.28
  6. Step 6: Final answer
    x = 435,743.54

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1.5x scale

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.