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Finding the Fourth Proportional to 890,553.60, 1,334,793.60 and 357,811.20

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Solution

The fourth proportional to 890,553.60, 1,334,793.60 and 357,811.20 is: 536,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,553.60 : 1,334,793.60 = 357,811.20 : x
  2. Step 2: Convert to fraction form
    890,553.60/1,334,793.60 = 357,811.20/x
  3. Step 3: Cross multiply
    890,553.60x = 1,334,793.60 × 357,811.20
  4. Step 4: Simplify right side
    890,553.60x = 477,604,099,768.32
  5. Step 5: Solve for x
    x = 477,604,099,768.32/890,553.60
  6. Step 6: Final answer
    x = 536,300.23

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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.