Home / 727,980.60-1,091,711.70-328,812.60

Finding the Fourth Proportional to 727,980.60, 1,091,711.70 and 328,812.60

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Solution

The fourth proportional to 727,980.60, 1,091,711.70 and 328,812.60 is: 493,101.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,980.60 : 1,091,711.70 = 328,812.60 : x
  2. Step 2: Convert to fraction form
    727,980.60/1,091,711.70 = 328,812.60/x
  3. Step 3: Cross multiply
    727,980.60x = 1,091,711.70 × 328,812.60
  4. Step 4: Simplify right side
    727,980.60x = 358,968,562,527.42
  5. Step 5: Solve for x
    x = 358,968,562,527.42/727,980.60
  6. Step 6: Final answer
    x = 493,101.83

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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.