Home / 872,288.64-1,307,897.04-339,188.16

Finding the Fourth Proportional to 872,288.64, 1,307,897.04 and 339,188.16

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Solution

The fourth proportional to 872,288.64, 1,307,897.04 and 339,188.16 is: 508,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,288.64 : 1,307,897.04 = 339,188.16 : x
  2. Step 2: Convert to fraction form
    872,288.64/1,307,897.04 = 339,188.16/x
  3. Step 3: Cross multiply
    872,288.64x = 1,307,897.04 × 339,188.16
  4. Step 4: Simplify right side
    872,288.64x = 443,623,190,467.05
  5. Step 5: Solve for x
    x = 443,623,190,467.05/872,288.64
  6. Step 6: Final answer
    x = 508,573.85

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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.