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Finding the Fourth Proportional to 539,298.02, 744,230.40 and 297,580.40

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Solution

The fourth proportional to 539,298.02, 744,230.40 and 297,580.40 is: 410,660.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,298.02 : 744,230.40 = 297,580.40 : x
  2. Step 2: Convert to fraction form
    539,298.02/744,230.40 = 297,580.40/x
  3. Step 3: Cross multiply
    539,298.02x = 744,230.40 × 297,580.40
  4. Step 4: Simplify right side
    539,298.02x = 221,468,380,124.16
  5. Step 5: Solve for x
    x = 221,468,380,124.16/539,298.02
  6. Step 6: Final answer
    x = 410,660.47

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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.