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Finding the Fourth Proportional to 539,653.30, 744,702.06 and 297,930.76

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Solution

The fourth proportional to 539,653.30, 744,702.06 and 297,930.76 is: 411,133.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,653.30 : 744,702.06 = 297,930.76 : x
  2. Step 2: Convert to fraction form
    539,653.30/744,702.06 = 297,930.76/x
  3. Step 3: Cross multiply
    539,653.30x = 744,702.06 × 297,930.76
  4. Step 4: Simplify right side
    539,653.30x = 221,869,650,709.37
  5. Step 5: Solve for x
    x = 221,869,650,709.37/539,653.30
  6. Step 6: Final answer
    x = 411,133.69

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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.