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Finding the Fourth Proportional to 874,336.83, 1,311,682.04 and 368,899.05

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Solution

The fourth proportional to 874,336.83, 1,311,682.04 and 368,899.05 is: 553,423.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,336.83 : 1,311,682.04 = 368,899.05 : x
  2. Step 2: Convert to fraction form
    874,336.83/1,311,682.04 = 368,899.05/x
  3. Step 3: Cross multiply
    874,336.83x = 1,311,682.04 × 368,899.05
  4. Step 4: Simplify right side
    874,336.83x = 483,878,262,915.75
  5. Step 5: Solve for x
    x = 483,878,262,915.75/874,336.83
  6. Step 6: Final answer
    x = 553,423.18

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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.