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Finding the Fourth Proportional to 770,040, 1,155,526.56 and 326,808

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Solution

The fourth proportional to 770,040, 1,155,526.56 and 326,808 is: 490,410.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,040 : 1,155,526.56 = 326,808 : x
  2. Step 2: Convert to fraction form
    770,040/1,155,526.56 = 326,808/x
  3. Step 3: Cross multiply
    770,040x = 1,155,526.56 × 326,808
  4. Step 4: Simplify right side
    770,040x = 377,635,324,020.48
  5. Step 5: Solve for x
    x = 377,635,324,020.48/770,040
  6. Step 6: Final answer
    x = 490,410.01

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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.