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Finding the Fourth Proportional to 529,519.84, 730,744.79 and 287,802.34

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Solution

The fourth proportional to 529,519.84, 730,744.79 and 287,802.34 is: 397,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,519.84 : 730,744.79 = 287,802.34 : x
  2. Step 2: Convert to fraction form
    529,519.84/730,744.79 = 287,802.34/x
  3. Step 3: Cross multiply
    529,519.84x = 730,744.79 × 287,802.34
  4. Step 4: Simplify right side
    529,519.84x = 210,310,057,238.94
  5. Step 5: Solve for x
    x = 210,310,057,238.94/529,519.84
  6. Step 6: Final answer
    x = 397,171.25

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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.