Home / 1,620,047.32-2,235,733.18-931,719.65

Finding the Fourth Proportional to 1,620,047.32, 2,235,733.18 and 931,719.65

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Solution

The fourth proportional to 1,620,047.32, 2,235,733.18 and 931,719.65 is: 1,285,812.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,047.32 : 2,235,733.18 = 931,719.65 : x
  2. Step 2: Convert to fraction form
    1,620,047.32/2,235,733.18 = 931,719.65/x
  3. Step 3: Cross multiply
    1,620,047.32x = 2,235,733.18 × 931,719.65
  4. Step 4: Simplify right side
    1,620,047.32x = 2,083,076,522,455.02
  5. Step 5: Solve for x
    x = 2,083,076,522,455.02/1,620,047.32
  6. Step 6: Final answer
    x = 1,285,812.15

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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.