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Finding the Fourth Proportional to 575,487.40, 862,064.70 and 325,877.80

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Solution

The fourth proportional to 575,487.40, 862,064.70 and 325,877.80 is: 488,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,487.40 : 862,064.70 = 325,877.80 : x
  2. Step 2: Convert to fraction form
    575,487.40/862,064.70 = 325,877.80/x
  3. Step 3: Cross multiply
    575,487.40x = 862,064.70 × 325,877.80
  4. Step 4: Simplify right side
    575,487.40x = 280,927,747,893.66
  5. Step 5: Solve for x
    x = 280,927,747,893.66/575,487.40
  6. Step 6: Final answer
    x = 488,156.21

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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.