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Finding the Fourth Proportional to 598,316.80, 897,912.60 and 398,570.80

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Solution

The fourth proportional to 598,316.80, 897,912.60 and 398,570.80 is: 598,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,316.80 : 897,912.60 = 398,570.80 : x
  2. Step 2: Convert to fraction form
    598,316.80/897,912.60 = 398,570.80/x
  3. Step 3: Cross multiply
    598,316.80x = 897,912.60 × 398,570.80
  4. Step 4: Simplify right side
    598,316.80x = 357,881,743,312.08
  5. Step 5: Solve for x
    x = 357,881,743,312.08/598,316.80
  6. Step 6: Final answer
    x = 598,147.58

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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.