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Finding the Fourth Proportional to 622,659.40, 934,280.70 and 323,477.80

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Solution

The fourth proportional to 622,659.40, 934,280.70 and 323,477.80 is: 485,368.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,659.40 : 934,280.70 = 323,477.80 : x
  2. Step 2: Convert to fraction form
    622,659.40/934,280.70 = 323,477.80/x
  3. Step 3: Cross multiply
    622,659.40x = 934,280.70 × 323,477.80
  4. Step 4: Simplify right side
    622,659.40x = 302,219,065,418.46
  5. Step 5: Solve for x
    x = 302,219,065,418.46/622,659.40
  6. Step 6: Final answer
    x = 485,368.19

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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.