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Finding the Fourth Proportional to 545,507.49, 752,788.57 and 300,499.10

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Solution

The fourth proportional to 545,507.49, 752,788.57 and 300,499.10 is: 414,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,507.49 : 752,788.57 = 300,499.10 : x
  2. Step 2: Convert to fraction form
    545,507.49/752,788.57 = 300,499.10/x
  3. Step 3: Cross multiply
    545,507.49x = 752,788.57 × 300,499.10
  4. Step 4: Simplify right side
    545,507.49x = 226,212,287,775.29
  5. Step 5: Solve for x
    x = 226,212,287,775.29/545,507.49
  6. Step 6: Final answer
    x = 414,682.28

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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.