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Finding the Fourth Proportional to 640,792.62, 884,298.33 and 350,405.46

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Solution

The fourth proportional to 640,792.62, 884,298.33 and 350,405.46 is: 483,562.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,792.62 : 884,298.33 = 350,405.46 : x
  2. Step 2: Convert to fraction form
    640,792.62/884,298.33 = 350,405.46/x
  3. Step 3: Cross multiply
    640,792.62x = 884,298.33 × 350,405.46
  4. Step 4: Simplify right side
    640,792.62x = 309,862,963,100.88
  5. Step 5: Solve for x
    x = 309,862,963,100.88/640,792.62
  6. Step 6: Final answer
    x = 483,562.00

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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.