Home / 855,219.50-1,284,490.02-629,689.22

Finding the Fourth Proportional to 855,219.50, 1,284,490.02 and 629,689.22

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Solution

The fourth proportional to 855,219.50, 1,284,490.02 and 629,689.22 is: 945,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,219.50 : 1,284,490.02 = 629,689.22 : x
  2. Step 2: Convert to fraction form
    855,219.50/1,284,490.02 = 629,689.22/x
  3. Step 3: Cross multiply
    855,219.50x = 1,284,490.02 × 629,689.22
  4. Step 4: Simplify right side
    855,219.50x = 808,829,518,791.58
  5. Step 5: Solve for x
    x = 808,829,518,791.58/855,219.50
  6. Step 6: Final answer
    x = 945,756.64

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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.