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Finding the Fourth Proportional to 552,938.20, 828,751.20 and 286,561.60

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Solution

The fourth proportional to 552,938.20, 828,751.20 and 286,561.60 is: 429,502.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,938.20 : 828,751.20 = 286,561.60 : x
  2. Step 2: Convert to fraction form
    552,938.20/828,751.20 = 286,561.60/x
  3. Step 3: Cross multiply
    552,938.20x = 828,751.20 × 286,561.60
  4. Step 4: Simplify right side
    552,938.20x = 237,488,269,873.92
  5. Step 5: Solve for x
    x = 237,488,269,873.92/552,938.20
  6. Step 6: Final answer
    x = 429,502.37

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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.