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Finding the Fourth Proportional to 598,409.76, 897,612.20 and 243,420.80

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Solution

The fourth proportional to 598,409.76, 897,612.20 and 243,420.80 is: 365,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,409.76 : 897,612.20 = 243,420.80 : x
  2. Step 2: Convert to fraction form
    598,409.76/897,612.20 = 243,420.80/x
  3. Step 3: Cross multiply
    598,409.76x = 897,612.20 × 243,420.80
  4. Step 4: Simplify right side
    598,409.76x = 218,497,479,813.76
  5. Step 5: Solve for x
    x = 218,497,479,813.76/598,409.76
  6. Step 6: Final answer
    x = 365,130.21

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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.