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Finding the Fourth Proportional to 609,573.38, 841,622.28 and 380,479.64

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Solution

The fourth proportional to 609,573.38, 841,622.28 and 380,479.64 is: 525,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,573.38 : 841,622.28 = 380,479.64 : x
  2. Step 2: Convert to fraction form
    609,573.38/841,622.28 = 380,479.64/x
  3. Step 3: Cross multiply
    609,573.38x = 841,622.28 × 380,479.64
  4. Step 4: Simplify right side
    609,573.38x = 320,220,142,110.38
  5. Step 5: Solve for x
    x = 320,220,142,110.38/609,573.38
  6. Step 6: Final answer
    x = 525,318.45

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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.