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Finding the Fourth Proportional to 524,989.94, 786,752.49 and 396,800.87

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Solution

The fourth proportional to 524,989.94, 786,752.49 and 396,800.87 is: 594,647.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,989.94 : 786,752.49 = 396,800.87 : x
  2. Step 2: Convert to fraction form
    524,989.94/786,752.49 = 396,800.87/x
  3. Step 3: Cross multiply
    524,989.94x = 786,752.49 × 396,800.87
  4. Step 4: Simplify right side
    524,989.94x = 312,184,072,506.67
  5. Step 5: Solve for x
    x = 312,184,072,506.67/524,989.94
  6. Step 6: Final answer
    x = 594,647.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.