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Finding the Fourth Proportional to 649,226.28, 895,978.62 and 358,831.62

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Solution

The fourth proportional to 649,226.28, 895,978.62 and 358,831.62 is: 495,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,226.28 : 895,978.62 = 358,831.62 : x
  2. Step 2: Convert to fraction form
    649,226.28/895,978.62 = 358,831.62/x
  3. Step 3: Cross multiply
    649,226.28x = 895,978.62 × 358,831.62
  4. Step 4: Simplify right side
    649,226.28x = 321,505,459,699.96
  5. Step 5: Solve for x
    x = 321,505,459,699.96/649,226.28
  6. Step 6: Final answer
    x = 495,213.26

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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.