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Finding the Fourth Proportional to 400,802.58, 554,170.95 and 350,356.86

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Solution

The fourth proportional to 400,802.58, 554,170.95 and 350,356.86 is: 484,422.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,802.58 : 554,170.95 = 350,356.86 : x
  2. Step 2: Convert to fraction form
    400,802.58/554,170.95 = 350,356.86/x
  3. Step 3: Cross multiply
    400,802.58x = 554,170.95 × 350,356.86
  4. Step 4: Simplify right side
    400,802.58x = 194,157,593,945.22
  5. Step 5: Solve for x
    x = 194,157,593,945.22/400,802.58
  6. Step 6: Final answer
    x = 484,422.02

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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.