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Finding the Fourth Proportional to 598,641.20, 898,998.60 and 579,978.80

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Solution

The fourth proportional to 598,641.20, 898,998.60 and 579,978.80 is: 870,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,641.20 : 898,998.60 = 579,978.80 : x
  2. Step 2: Convert to fraction form
    598,641.20/898,998.60 = 579,978.80/x
  3. Step 3: Cross multiply
    598,641.20x = 898,998.60 × 579,978.80
  4. Step 4: Simplify right side
    598,641.20x = 521,400,129,229.68
  5. Step 5: Solve for x
    x = 521,400,129,229.68/598,641.20
  6. Step 6: Final answer
    x = 870,972.68

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1.5x scale

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.