Home / 647,332.16-971,136.96-226,621.76

Finding the Fourth Proportional to 647,332.16, 971,136.96 and 226,621.76

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Solution

The fourth proportional to 647,332.16, 971,136.96 and 226,621.76 is: 339,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,332.16 : 971,136.96 = 226,621.76 : x
  2. Step 2: Convert to fraction form
    647,332.16/971,136.96 = 226,621.76/x
  3. Step 3: Cross multiply
    647,332.16x = 971,136.96 × 226,621.76
  4. Step 4: Simplify right side
    647,332.16x = 220,080,767,076.25
  5. Step 5: Solve for x
    x = 220,080,767,076.25/647,332.16
  6. Step 6: Final answer
    x = 339,981.20

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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.