Home / 339,936.60-509,686.02-292,566.12

Finding the Fourth Proportional to 339,936.60, 509,686.02 and 292,566.12

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Solution

The fourth proportional to 339,936.60, 509,686.02 and 292,566.12 is: 438,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,936.60 : 509,686.02 = 292,566.12 : x
  2. Step 2: Convert to fraction form
    339,936.60/509,686.02 = 292,566.12/x
  3. Step 3: Cross multiply
    339,936.60x = 509,686.02 × 292,566.12
  4. Step 4: Simplify right side
    339,936.60x = 149,116,861,289.64
  5. Step 5: Solve for x
    x = 149,116,861,289.64/339,936.60
  6. Step 6: Final answer
    x = 438,660.80

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1.5x scale

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.