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Finding the Fourth Proportional to 539,113.11, 743,980.71 and 297,403.98

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Solution

The fourth proportional to 539,113.11, 743,980.71 and 297,403.98 is: 410,420.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,113.11 : 743,980.71 = 297,403.98 : x
  2. Step 2: Convert to fraction form
    539,113.11/743,980.71 = 297,403.98/x
  3. Step 3: Cross multiply
    539,113.11x = 743,980.71 × 297,403.98
  4. Step 4: Simplify right side
    539,113.11x = 221,262,824,197.23
  5. Step 5: Solve for x
    x = 221,262,824,197.23/539,113.11
  6. Step 6: Final answer
    x = 410,420.04

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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.