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Finding the Fourth Proportional to 598,911.20, 898,366.80 and 386,334.80

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Solution

The fourth proportional to 598,911.20, 898,366.80 and 386,334.80 is: 579,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,911.20 : 898,366.80 = 386,334.80 : x
  2. Step 2: Convert to fraction form
    598,911.20/898,366.80 = 386,334.80/x
  3. Step 3: Cross multiply
    598,911.20x = 898,366.80 × 386,334.80
  4. Step 4: Simplify right side
    598,911.20x = 347,070,358,004.64
  5. Step 5: Solve for x
    x = 347,070,358,004.64/598,911.20
  6. Step 6: Final answer
    x = 579,502.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.