Home / 854,037.54-1,178,688.98-491,454

Finding the Fourth Proportional to 854,037.54, 1,178,688.98 and 491,454

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Solution

The fourth proportional to 854,037.54, 1,178,688.98 and 491,454 is: 678,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,037.54 : 1,178,688.98 = 491,454 : x
  2. Step 2: Convert to fraction form
    854,037.54/1,178,688.98 = 491,454/x
  3. Step 3: Cross multiply
    854,037.54x = 1,178,688.98 × 491,454
  4. Step 4: Simplify right side
    854,037.54x = 579,271,413,976.92
  5. Step 5: Solve for x
    x = 579,271,413,976.92/854,037.54
  6. Step 6: Final answer
    x = 678,273.95

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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.