Home / 708,694.50-1,061,838.88-427,621.26

Finding the Fourth Proportional to 708,694.50, 1,061,838.88 and 427,621.26

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Solution

The fourth proportional to 708,694.50, 1,061,838.88 and 427,621.26 is: 640,706.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,694.50 : 1,061,838.88 = 427,621.26 : x
  2. Step 2: Convert to fraction form
    708,694.50/1,061,838.88 = 427,621.26/x
  3. Step 3: Cross multiply
    708,694.50x = 1,061,838.88 × 427,621.26
  4. Step 4: Simplify right side
    708,694.50x = 454,064,879,782.59
  5. Step 5: Solve for x
    x = 454,064,879,782.59/708,694.50
  6. Step 6: Final answer
    x = 640,706.09

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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.