Home / 851,239.80-1,174,718.79-469,280.25

Finding the Fourth Proportional to 851,239.80, 1,174,718.79 and 469,280.25

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Solution

The fourth proportional to 851,239.80, 1,174,718.79 and 469,280.25 is: 647,611.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,239.80 : 1,174,718.79 = 469,280.25 : x
  2. Step 2: Convert to fraction form
    851,239.80/1,174,718.79 = 469,280.25/x
  3. Step 3: Cross multiply
    851,239.80x = 1,174,718.79 × 469,280.25
  4. Step 4: Simplify right side
    851,239.80x = 551,272,327,450.90
  5. Step 5: Solve for x
    x = 551,272,327,450.90/851,239.80
  6. Step 6: Final answer
    x = 647,611.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.