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Finding the Fourth Proportional to 648,188.50, 894,500.20 and 357,800.16

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Solution

The fourth proportional to 648,188.50, 894,500.20 and 357,800.16 is: 493,764.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,188.50 : 894,500.20 = 357,800.16 : x
  2. Step 2: Convert to fraction form
    648,188.50/894,500.20 = 357,800.16/x
  3. Step 3: Cross multiply
    648,188.50x = 894,500.20 × 357,800.16
  4. Step 4: Simplify right side
    648,188.50x = 320,052,314,680.03
  5. Step 5: Solve for x
    x = 320,052,314,680.03/648,188.50
  6. Step 6: Final answer
    x = 493,764.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.