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Finding the Fourth Proportional to 539,499.43, 744,509.28 and 297,782.07

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Solution

The fourth proportional to 539,499.43, 744,509.28 and 297,782.07 is: 410,939.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,499.43 : 744,509.28 = 297,782.07 : x
  2. Step 2: Convert to fraction form
    539,499.43/744,509.28 = 297,782.07/x
  3. Step 3: Cross multiply
    539,499.43x = 744,509.28 × 297,782.07
  4. Step 4: Simplify right side
    539,499.43x = 221,701,510,810.06
  5. Step 5: Solve for x
    x = 221,701,510,810.06/539,499.43
  6. Step 6: Final answer
    x = 410,939.29

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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.