Home / 628,962.30-867,852.60-370,920.18

Finding the Fourth Proportional to 628,962.30, 867,852.60 and 370,920.18

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Solution

The fourth proportional to 628,962.30, 867,852.60 and 370,920.18 is: 511,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,962.30 : 867,852.60 = 370,920.18 : x
  2. Step 2: Convert to fraction form
    628,962.30/867,852.60 = 370,920.18/x
  3. Step 3: Cross multiply
    628,962.30x = 867,852.60 × 370,920.18
  4. Step 4: Simplify right side
    628,962.30x = 321,904,042,605.47
  5. Step 5: Solve for x
    x = 321,904,042,605.47/628,962.30
  6. Step 6: Final answer
    x = 511,801.81

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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.