Home / 1,658,439.76-2,487,651.18-647,664.34

Finding the Fourth Proportional to 1,658,439.76, 2,487,651.18 and 647,664.34

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Solution

The fourth proportional to 1,658,439.76, 2,487,651.18 and 647,664.34 is: 971,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658,439.76 : 2,487,651.18 = 647,664.34 : x
  2. Step 2: Convert to fraction form
    1,658,439.76/2,487,651.18 = 647,664.34/x
  3. Step 3: Cross multiply
    1,658,439.76x = 2,487,651.18 × 647,664.34
  4. Step 4: Simplify right side
    1,658,439.76x = 1,611,162,959,644.92
  5. Step 5: Solve for x
    x = 1,611,162,959,644.92/1,658,439.76
  6. Step 6: Final answer
    x = 971,493.21

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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.