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Finding the Fourth Proportional to 529,421.02, 730,598.61 and 287,699.02

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Solution

The fourth proportional to 529,421.02, 730,598.61 and 287,699.02 is: 397,023.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,421.02 : 730,598.61 = 287,699.02 : x
  2. Step 2: Convert to fraction form
    529,421.02/730,598.61 = 287,699.02/x
  3. Step 3: Cross multiply
    529,421.02x = 730,598.61 × 287,699.02
  4. Step 4: Simplify right side
    529,421.02x = 210,192,504,110.36
  5. Step 5: Solve for x
    x = 210,192,504,110.36/529,421.02
  6. Step 6: Final answer
    x = 397,023.34

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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.