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Finding the Fourth Proportional to 529,699, 730,984.62 and 291,235

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Solution

The fourth proportional to 529,699, 730,984.62 and 291,235 is: 401,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,699 : 730,984.62 = 291,235 : x
  2. Step 2: Convert to fraction form
    529,699/730,984.62 = 291,235/x
  3. Step 3: Cross multiply
    529,699x = 730,984.62 × 291,235
  4. Step 4: Simplify right side
    529,699x = 212,888,305,805.70
  5. Step 5: Solve for x
    x = 212,888,305,805.70/529,699
  6. Step 6: Final answer
    x = 401,904.30

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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.