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Finding the Fourth Proportional to 652,632.20, 978,429.90 and 357,144.20

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Solution

The fourth proportional to 652,632.20, 978,429.90 and 357,144.20 is: 535,432.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,632.20 : 978,429.90 = 357,144.20 : x
  2. Step 2: Convert to fraction form
    652,632.20/978,429.90 = 357,144.20/x
  3. Step 3: Cross multiply
    652,632.20x = 978,429.90 × 357,144.20
  4. Step 4: Simplify right side
    652,632.20x = 349,440,563,891.58
  5. Step 5: Solve for x
    x = 349,440,563,891.58/652,632.20
  6. Step 6: Final answer
    x = 535,432.61

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.