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Finding the Fourth Proportional to 598,840.30, 897,223.65 and 388,369.90

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Solution

The fourth proportional to 598,840.30, 897,223.65 and 388,369.90 is: 581,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,840.30 : 897,223.65 = 388,369.90 : x
  2. Step 2: Convert to fraction form
    598,840.30/897,223.65 = 388,369.90/x
  3. Step 3: Cross multiply
    598,840.30x = 897,223.65 × 388,369.90
  4. Step 4: Simplify right side
    598,840.30x = 348,454,659,228.14
  5. Step 5: Solve for x
    x = 348,454,659,228.14/598,840.30
  6. Step 6: Final answer
    x = 581,882.45

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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.