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Finding the Fourth Proportional to 539,702.64, 808,908.84 and 251,124.48

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Solution

The fourth proportional to 539,702.64, 808,908.84 and 251,124.48 is: 376,386.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,702.64 : 808,908.84 = 251,124.48 : x
  2. Step 2: Convert to fraction form
    539,702.64/808,908.84 = 251,124.48/x
  3. Step 3: Cross multiply
    539,702.64x = 808,908.84 × 251,124.48
  4. Step 4: Simplify right side
    539,702.64x = 203,136,811,812.40
  5. Step 5: Solve for x
    x = 203,136,811,812.40/539,702.64
  6. Step 6: Final answer
    x = 376,386.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.