Home / 679,812.60-1,019,718.90-325,518.60

Finding the Fourth Proportional to 679,812.60, 1,019,718.90 and 325,518.60

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Solution

The fourth proportional to 679,812.60, 1,019,718.90 and 325,518.60 is: 488,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,812.60 : 1,019,718.90 = 325,518.60 : x
  2. Step 2: Convert to fraction form
    679,812.60/1,019,718.90 = 325,518.60/x
  3. Step 3: Cross multiply
    679,812.60x = 1,019,718.90 × 325,518.60
  4. Step 4: Simplify right side
    679,812.60x = 331,937,468,721.54
  5. Step 5: Solve for x
    x = 331,937,468,721.54/679,812.60
  6. Step 6: Final answer
    x = 488,277.90

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Similar ratio
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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.