Home / 851,172.49-1,174,617.79-469,205.65

Finding the Fourth Proportional to 851,172.49, 1,174,617.79 and 469,205.65

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Solution

The fourth proportional to 851,172.49, 1,174,617.79 and 469,205.65 is: 647,503.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,172.49 : 1,174,617.79 = 469,205.65 : x
  2. Step 2: Convert to fraction form
    851,172.49/1,174,617.79 = 469,205.65/x
  3. Step 3: Cross multiply
    851,172.49x = 1,174,617.79 × 469,205.65
  4. Step 4: Simplify right side
    851,172.49x = 551,137,303,658.51
  5. Step 5: Solve for x
    x = 551,137,303,658.51/851,172.49
  6. Step 6: Final answer
    x = 647,503.66

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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.