Home / 851,272.80-1,275,872.40-377,455.20

Finding the Fourth Proportional to 851,272.80, 1,275,872.40 and 377,455.20

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Solution

The fourth proportional to 851,272.80, 1,275,872.40 and 377,455.20 is: 565,723.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,272.80 : 1,275,872.40 = 377,455.20 : x
  2. Step 2: Convert to fraction form
    851,272.80/1,275,872.40 = 377,455.20/x
  3. Step 3: Cross multiply
    851,272.80x = 1,275,872.40 × 377,455.20
  4. Step 4: Simplify right side
    851,272.80x = 481,584,671,916.48
  5. Step 5: Solve for x
    x = 481,584,671,916.48/851,272.80
  6. Step 6: Final answer
    x = 565,723.08

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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.