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Finding the Fourth Proportional to 679,648.79, 937,938.74 and 373,736.70

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Solution

The fourth proportional to 679,648.79, 937,938.74 and 373,736.70 is: 515,769.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,648.79 : 937,938.74 = 373,736.70 : x
  2. Step 2: Convert to fraction form
    679,648.79/937,938.74 = 373,736.70/x
  3. Step 3: Cross multiply
    679,648.79x = 937,938.74 × 373,736.70
  4. Step 4: Simplify right side
    679,648.79x = 350,542,127,621.08
  5. Step 5: Solve for x
    x = 350,542,127,621.08/679,648.79
  6. Step 6: Final answer
    x = 515,769.52

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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.