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Finding the Fourth Proportional to 660,336.02, 990,897.54 and 239,644.70

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Solution

The fourth proportional to 660,336.02, 990,897.54 and 239,644.70 is: 359,609.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,336.02 : 990,897.54 = 239,644.70 : x
  2. Step 2: Convert to fraction form
    660,336.02/990,897.54 = 239,644.70/x
  3. Step 3: Cross multiply
    660,336.02x = 990,897.54 × 239,644.70
  4. Step 4: Simplify right side
    660,336.02x = 237,463,343,704.04
  5. Step 5: Solve for x
    x = 237,463,343,704.04/660,336.02
  6. Step 6: Final answer
    x = 359,609.86

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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.