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Finding the Fourth Proportional to 599,998.40, 899,997.60 and 347,710.40

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Solution

The fourth proportional to 599,998.40, 899,997.60 and 347,710.40 is: 521,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,998.40 : 899,997.60 = 347,710.40 : x
  2. Step 2: Convert to fraction form
    599,998.40/899,997.60 = 347,710.40/x
  3. Step 3: Cross multiply
    599,998.40x = 899,997.60 × 347,710.40
  4. Step 4: Simplify right side
    599,998.40x = 312,938,525,495.04
  5. Step 5: Solve for x
    x = 312,938,525,495.04/599,998.40
  6. Step 6: Final answer
    x = 521,565.60

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Double scale
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Similar ratio
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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.