Home / 379,899.36-526,658.54-359,675.28

Finding the Fourth Proportional to 379,899.36, 526,658.54 and 359,675.28

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Solution

The fourth proportional to 379,899.36, 526,658.54 and 359,675.28 is: 498,621.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,899.36 : 526,658.54 = 359,675.28 : x
  2. Step 2: Convert to fraction form
    379,899.36/526,658.54 = 359,675.28/x
  3. Step 3: Cross multiply
    379,899.36x = 526,658.54 × 359,675.28
  4. Step 4: Simplify right side
    379,899.36x = 189,426,056,040.52
  5. Step 5: Solve for x
    x = 189,426,056,040.52/379,899.36
  6. Step 6: Final answer
    x = 498,621.68

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.