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Finding the Fourth Proportional to 649,358.78, 896,112.52 and 362,878.79

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Solution

The fourth proportional to 649,358.78, 896,112.52 and 362,878.79 is: 500,771.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,358.78 : 896,112.52 = 362,878.79 : x
  2. Step 2: Convert to fraction form
    649,358.78/896,112.52 = 362,878.79/x
  3. Step 3: Cross multiply
    649,358.78x = 896,112.52 × 362,878.79
  4. Step 4: Simplify right side
    649,358.78x = 325,180,221,573.69
  5. Step 5: Solve for x
    x = 325,180,221,573.69/649,358.78
  6. Step 6: Final answer
    x = 500,771.27

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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.