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Finding the Fourth Proportional to 658,608.69, 908,880.90 and 356,802.69

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Solution

The fourth proportional to 658,608.69, 908,880.90 and 356,802.69 is: 492,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,608.69 : 908,880.90 = 356,802.69 : x
  2. Step 2: Convert to fraction form
    658,608.69/908,880.90 = 356,802.69/x
  3. Step 3: Cross multiply
    658,608.69x = 908,880.90 × 356,802.69
  4. Step 4: Simplify right side
    658,608.69x = 324,291,150,009.62
  5. Step 5: Solve for x
    x = 324,291,150,009.62/658,608.69
  6. Step 6: Final answer
    x = 492,388.20

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1.5x scale

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.