Home / 628,557.94-867,258.68-370,445.16

Finding the Fourth Proportional to 628,557.94, 867,258.68 and 370,445.16

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Solution

The fourth proportional to 628,557.94, 867,258.68 and 370,445.16 is: 511,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,557.94 : 867,258.68 = 370,445.16 : x
  2. Step 2: Convert to fraction form
    628,557.94/867,258.68 = 370,445.16/x
  3. Step 3: Cross multiply
    628,557.94x = 867,258.68 × 370,445.16
  4. Step 4: Simplify right side
    628,557.94x = 321,271,781,400.10
  5. Step 5: Solve for x
    x = 321,271,781,400.10/628,557.94
  6. Step 6: Final answer
    x = 511,125.17

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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.