Home / 916,790.80-1,375,467.74-437,630.04

Finding the Fourth Proportional to 916,790.80, 1,375,467.74 and 437,630.04

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Solution

The fourth proportional to 916,790.80, 1,375,467.74 and 437,630.04 is: 656,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,790.80 : 1,375,467.74 = 437,630.04 : x
  2. Step 2: Convert to fraction form
    916,790.80/1,375,467.74 = 437,630.04/x
  3. Step 3: Cross multiply
    916,790.80x = 1,375,467.74 × 437,630.04
  4. Step 4: Simplify right side
    916,790.80x = 601,946,002,074.91
  5. Step 5: Solve for x
    x = 601,946,002,074.91/916,790.80
  6. Step 6: Final answer
    x = 656,579.45

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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.