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Finding the Fourth Proportional to 771,818.80, 1,157,670.60 and 322,423.60

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Solution

The fourth proportional to 771,818.80, 1,157,670.60 and 322,423.60 is: 483,611.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,818.80 : 1,157,670.60 = 322,423.60 : x
  2. Step 2: Convert to fraction form
    771,818.80/1,157,670.60 = 322,423.60/x
  3. Step 3: Cross multiply
    771,818.80x = 1,157,670.60 × 322,423.60
  4. Step 4: Simplify right side
    771,818.80x = 373,260,322,466.16
  5. Step 5: Solve for x
    x = 373,260,322,466.16/771,818.80
  6. Step 6: Final answer
    x = 483,611.34

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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.