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Finding the Fourth Proportional to 896,939, 1,237,785.50 and 489,037.52

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Solution

The fourth proportional to 896,939, 1,237,785.50 and 489,037.52 is: 674,877.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,939 : 1,237,785.50 = 489,037.52 : x
  2. Step 2: Convert to fraction form
    896,939/1,237,785.50 = 489,037.52/x
  3. Step 3: Cross multiply
    896,939x = 1,237,785.50 × 489,037.52
  4. Step 4: Simplify right side
    896,939x = 605,323,551,211.96
  5. Step 5: Solve for x
    x = 605,323,551,211.96/896,939
  6. Step 6: Final answer
    x = 674,877.06

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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.