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Finding the Fourth Proportional to 649,612.95, 896,485.73 and 363,145.11

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Solution

The fourth proportional to 649,612.95, 896,485.73 and 363,145.11 is: 501,151.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,612.95 : 896,485.73 = 363,145.11 : x
  2. Step 2: Convert to fraction form
    649,612.95/896,485.73 = 363,145.11/x
  3. Step 3: Cross multiply
    649,612.95x = 896,485.73 × 363,145.11
  4. Step 4: Simplify right side
    649,612.95x = 325,554,407,218.56
  5. Step 5: Solve for x
    x = 325,554,407,218.56/649,612.95
  6. Step 6: Final answer
    x = 501,151.35

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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.