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Finding the Fourth Proportional to 679,572.89, 937,790.66 and 373,648.95

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Solution

The fourth proportional to 679,572.89, 937,790.66 and 373,648.95 is: 515,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,572.89 : 937,790.66 = 373,648.95 : x
  2. Step 2: Convert to fraction form
    679,572.89/937,790.66 = 373,648.95/x
  3. Step 3: Cross multiply
    679,572.89x = 937,790.66 × 373,648.95
  4. Step 4: Simplify right side
    679,572.89x = 350,404,496,362.93
  5. Step 5: Solve for x
    x = 350,404,496,362.93/679,572.89
  6. Step 6: Final answer
    x = 515,624.60

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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.