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Finding the Fourth Proportional to 622,477.60, 934,407.60 and 386,087.20

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Solution

The fourth proportional to 622,477.60, 934,407.60 and 386,087.20 is: 579,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,477.60 : 934,407.60 = 386,087.20 : x
  2. Step 2: Convert to fraction form
    622,477.60/934,407.60 = 386,087.20/x
  3. Step 3: Cross multiply
    622,477.60x = 934,407.60 × 386,087.20
  4. Step 4: Simplify right side
    622,477.60x = 360,762,813,942.72
  5. Step 5: Solve for x
    x = 360,762,813,942.72/622,477.60
  6. Step 6: Final answer
    x = 579,559.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.