Home / 892,020-1,230,967.20-484,122.60

Finding the Fourth Proportional to 892,020, 1,230,967.20 and 484,122.60

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Solution

The fourth proportional to 892,020, 1,230,967.20 and 484,122.60 is: 668,078.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,020 : 1,230,967.20 = 484,122.60 : x
  2. Step 2: Convert to fraction form
    892,020/1,230,967.20 = 484,122.60/x
  3. Step 3: Cross multiply
    892,020x = 1,230,967.20 × 484,122.60
  4. Step 4: Simplify right side
    892,020x = 595,939,041,378.72
  5. Step 5: Solve for x
    x = 595,939,041,378.72/892,020
  6. Step 6: Final answer
    x = 668,078.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.