Home / 829,211.61-1,243,813.32-323,823.93

Finding the Fourth Proportional to 829,211.61, 1,243,813.32 and 323,823.93

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Solution

The fourth proportional to 829,211.61, 1,243,813.32 and 323,823.93 is: 485,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,211.61 : 1,243,813.32 = 323,823.93 : x
  2. Step 2: Convert to fraction form
    829,211.61/1,243,813.32 = 323,823.93/x
  3. Step 3: Cross multiply
    829,211.61x = 1,243,813.32 × 323,823.93
  4. Step 4: Simplify right side
    829,211.61x = 402,776,517,468.75
  5. Step 5: Solve for x
    x = 402,776,517,468.75/829,211.61
  6. Step 6: Final answer
    x = 485,734.30

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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.