Home / 874,310.85-1,311,213.96-368,985.06

Finding the Fourth Proportional to 874,310.85, 1,311,213.96 and 368,985.06

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Solution

The fourth proportional to 874,310.85, 1,311,213.96 and 368,985.06 is: 553,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,310.85 : 1,311,213.96 = 368,985.06 : x
  2. Step 2: Convert to fraction form
    874,310.85/1,311,213.96 = 368,985.06/x
  3. Step 3: Cross multiply
    874,310.85x = 1,311,213.96 × 368,985.06
  4. Step 4: Simplify right side
    874,310.85x = 483,818,361,703.44
  5. Step 5: Solve for x
    x = 483,818,361,703.44/874,310.85
  6. Step 6: Final answer
    x = 553,371.11

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1.5x scale

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.