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Finding the Fourth Proportional to 599,997.60, 897,663.60 and 390,045.60

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Solution

The fourth proportional to 599,997.60, 897,663.60 and 390,045.60 is: 583,551.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,997.60 : 897,663.60 = 390,045.60 : x
  2. Step 2: Convert to fraction form
    599,997.60/897,663.60 = 390,045.60/x
  3. Step 3: Cross multiply
    599,997.60x = 897,663.60 × 390,045.60
  4. Step 4: Simplify right side
    599,997.60x = 350,129,737,460.16
  5. Step 5: Solve for x
    x = 350,129,737,460.16/599,997.60
  6. Step 6: Final answer
    x = 583,551.90

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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.