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Finding the Fourth Proportional to 539,070.45, 743,922.41 and 297,363.21

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Solution

The fourth proportional to 539,070.45, 743,922.41 and 297,363.21 is: 410,364.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,070.45 : 743,922.41 = 297,363.21 : x
  2. Step 2: Convert to fraction form
    539,070.45/743,922.41 = 297,363.21/x
  3. Step 3: Cross multiply
    539,070.45x = 743,922.41 × 297,363.21
  4. Step 4: Simplify right side
    539,070.45x = 221,215,155,828.54
  5. Step 5: Solve for x
    x = 221,215,155,828.54/539,070.45
  6. Step 6: Final answer
    x = 410,364.09

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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.