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Finding the Fourth Proportional to 529,530.51, 730,748.67 and 303,219.75

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Solution

The fourth proportional to 529,530.51, 730,748.67 and 303,219.75 is: 418,441.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,530.51 : 730,748.67 = 303,219.75 : x
  2. Step 2: Convert to fraction form
    529,530.51/730,748.67 = 303,219.75/x
  3. Step 3: Cross multiply
    529,530.51x = 730,748.67 × 303,219.75
  4. Step 4: Simplify right side
    529,530.51x = 221,577,429,030.23
  5. Step 5: Solve for x
    x = 221,577,429,030.23/529,530.51
  6. Step 6: Final answer
    x = 418,441.29

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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.