Home / 864,981.47-1,297,708.92-416,077.85

Finding the Fourth Proportional to 864,981.47, 1,297,708.92 and 416,077.85

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Solution

The fourth proportional to 864,981.47, 1,297,708.92 and 416,077.85 is: 624,230.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,981.47 : 1,297,708.92 = 416,077.85 : x
  2. Step 2: Convert to fraction form
    864,981.47/1,297,708.92 = 416,077.85/x
  3. Step 3: Cross multiply
    864,981.47x = 1,297,708.92 × 416,077.85
  4. Step 4: Simplify right side
    864,981.47x = 539,947,937,359.42
  5. Step 5: Solve for x
    x = 539,947,937,359.42/864,981.47
  6. Step 6: Final answer
    x = 624,230.64

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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.