Home / 785,821.91-1,084,564.69-463,611.20

Finding the Fourth Proportional to 785,821.91, 1,084,564.69 and 463,611.20

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Solution

The fourth proportional to 785,821.91, 1,084,564.69 and 463,611.20 is: 639,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,821.91 : 1,084,564.69 = 463,611.20 : x
  2. Step 2: Convert to fraction form
    785,821.91/1,084,564.69 = 463,611.20/x
  3. Step 3: Cross multiply
    785,821.91x = 1,084,564.69 × 463,611.20
  4. Step 4: Simplify right side
    785,821.91x = 502,816,330,826.68
  5. Step 5: Solve for x
    x = 502,816,330,826.68/785,821.91
  6. Step 6: Final answer
    x = 639,860.42

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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.