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Finding the Fourth Proportional to 539,100.18, 743,949 and 297,405.90

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Solution

The fourth proportional to 539,100.18, 743,949 and 297,405.90 is: 410,415.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,100.18 : 743,949 = 297,405.90 : x
  2. Step 2: Convert to fraction form
    539,100.18/743,949 = 297,405.90/x
  3. Step 3: Cross multiply
    539,100.18x = 743,949 × 297,405.90
  4. Step 4: Simplify right side
    539,100.18x = 221,254,821,899.10
  5. Step 5: Solve for x
    x = 221,254,821,899.10/539,100.18
  6. Step 6: Final answer
    x = 410,415.04

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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.