Home / 611,485.29-917,390.60-212,125.41

Finding the Fourth Proportional to 611,485.29, 917,390.60 and 212,125.41

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Solution

The fourth proportional to 611,485.29, 917,390.60 and 212,125.41 is: 318,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,485.29 : 917,390.60 = 212,125.41 : x
  2. Step 2: Convert to fraction form
    611,485.29/917,390.60 = 212,125.41/x
  3. Step 3: Cross multiply
    611,485.29x = 917,390.60 × 212,125.41
  4. Step 4: Simplify right side
    611,485.29x = 194,601,856,094.52
  5. Step 5: Solve for x
    x = 194,601,856,094.52/611,485.29
  6. Step 6: Final answer
    x = 318,244.54

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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.