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Finding the Fourth Proportional to 370,820.55, 520,329.75 and 370,820.55

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Solution

The fourth proportional to 370,820.55, 520,329.75 and 370,820.55 is: 520,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,820.55 : 520,329.75 = 370,820.55 : x
  2. Step 2: Convert to fraction form
    370,820.55/520,329.75 = 370,820.55/x
  3. Step 3: Cross multiply
    370,820.55x = 520,329.75 × 370,820.55
  4. Step 4: Simplify right side
    370,820.55x = 192,948,964,076.36
  5. Step 5: Solve for x
    x = 192,948,964,076.36/370,820.55
  6. Step 6: Final answer
    x = 520,329.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.