Home / 851,486.40-1,175,053.68-469,504.80

Finding the Fourth Proportional to 851,486.40, 1,175,053.68 and 469,504.80

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Solution

The fourth proportional to 851,486.40, 1,175,053.68 and 469,504.80 is: 647,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,486.40 : 1,175,053.68 = 469,504.80 : x
  2. Step 2: Convert to fraction form
    851,486.40/1,175,053.68 = 469,504.80/x
  3. Step 3: Cross multiply
    851,486.40x = 1,175,053.68 × 469,504.80
  4. Step 4: Simplify right side
    851,486.40x = 551,693,343,017.66
  5. Step 5: Solve for x
    x = 551,693,343,017.66/851,486.40
  6. Step 6: Final answer
    x = 647,917.97

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1.5x scale

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.