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Finding the Fourth Proportional to 558,185.47, 770,272.70 and 316,484.39

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Solution

The fourth proportional to 558,185.47, 770,272.70 and 316,484.39 is: 436,735.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,185.47 : 770,272.70 = 316,484.39 : x
  2. Step 2: Convert to fraction form
    558,185.47/770,272.70 = 316,484.39/x
  3. Step 3: Cross multiply
    558,185.47x = 770,272.70 × 316,484.39
  4. Step 4: Simplify right side
    558,185.47x = 243,779,285,936.41
  5. Step 5: Solve for x
    x = 243,779,285,936.41/558,185.47
  6. Step 6: Final answer
    x = 436,735.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.