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Finding the Fourth Proportional to 771,820.80, 1,157,673.60 and 322,425.60

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Solution

The fourth proportional to 771,820.80, 1,157,673.60 and 322,425.60 is: 483,614.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,820.80 : 1,157,673.60 = 322,425.60 : x
  2. Step 2: Convert to fraction form
    771,820.80/1,157,673.60 = 322,425.60/x
  3. Step 3: Cross multiply
    771,820.80x = 1,157,673.60 × 322,425.60
  4. Step 4: Simplify right side
    771,820.80x = 373,263,605,084.16
  5. Step 5: Solve for x
    x = 373,263,605,084.16/771,820.80
  6. Step 6: Final answer
    x = 483,614.34

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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.