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Finding the Fourth Proportional to 598,774.94, 898,409.05 and 439,663.40

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Solution

The fourth proportional to 598,774.94, 898,409.05 and 439,663.40 is: 659,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,774.94 : 898,409.05 = 439,663.40 : x
  2. Step 2: Convert to fraction form
    598,774.94/898,409.05 = 439,663.40/x
  3. Step 3: Cross multiply
    598,774.94x = 898,409.05 × 439,663.40
  4. Step 4: Simplify right side
    598,774.94x = 394,997,577,513.77
  5. Step 5: Solve for x
    x = 394,997,577,513.77/598,774.94
  6. Step 6: Final answer
    x = 659,676.20

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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.