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Finding the Fourth Proportional to 539,030.97, 743,866.25 and 297,320.07

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Solution

The fourth proportional to 539,030.97, 743,866.25 and 297,320.07 is: 410,303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,030.97 : 743,866.25 = 297,320.07 : x
  2. Step 2: Convert to fraction form
    539,030.97/743,866.25 = 297,320.07/x
  3. Step 3: Cross multiply
    539,030.97x = 743,866.25 × 297,320.07
  4. Step 4: Simplify right side
    539,030.97x = 221,166,365,520.64
  5. Step 5: Solve for x
    x = 221,166,365,520.64/539,030.97
  6. Step 6: Final answer
    x = 410,303.63

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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.