Home / 330,911.04-492,624.02-328,942.72

Finding the Fourth Proportional to 330,911.04, 492,624.02 and 328,942.72

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Solution

The fourth proportional to 330,911.04, 492,624.02 and 328,942.72 is: 489,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,911.04 : 492,624.02 = 328,942.72 : x
  2. Step 2: Convert to fraction form
    330,911.04/492,624.02 = 328,942.72/x
  3. Step 3: Cross multiply
    330,911.04x = 492,624.02 × 328,942.72
  4. Step 4: Simplify right side
    330,911.04x = 162,045,085,076.13
  5. Step 5: Solve for x
    x = 162,045,085,076.13/330,911.04
  6. Step 6: Final answer
    x = 489,693.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.