Home / 628,461.12-867,125.13-370,348.62

Finding the Fourth Proportional to 628,461.12, 867,125.13 and 370,348.62

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Solution

The fourth proportional to 628,461.12, 867,125.13 and 370,348.62 is: 510,991.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,461.12 : 867,125.13 = 370,348.62 : x
  2. Step 2: Convert to fraction form
    628,461.12/867,125.13 = 370,348.62/x
  3. Step 3: Cross multiply
    628,461.12x = 867,125.13 × 370,348.62
  4. Step 4: Simplify right side
    628,461.12x = 321,138,590,622.29
  5. Step 5: Solve for x
    x = 321,138,590,622.29/628,461.12
  6. Step 6: Final answer
    x = 510,991.97

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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.