Home / 3,210,907.20-4,431,250.72-1,780,123.20

Finding the Fourth Proportional to 3,210,907.20, 4,431,250.72 and 1,780,123.20

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Solution

The fourth proportional to 3,210,907.20, 4,431,250.72 and 1,780,123.20 is: 2,456,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210,907.20 : 4,431,250.72 = 1,780,123.20 : x
  2. Step 2: Convert to fraction form
    3,210,907.20/4,431,250.72 = 1,780,123.20/x
  3. Step 3: Cross multiply
    3,210,907.20x = 4,431,250.72 × 1,780,123.20
  4. Step 4: Simplify right side
    3,210,907.20x = 7,888,172,211,688.70
  5. Step 5: Solve for x
    x = 7,888,172,211,688.70/3,210,907.20
  6. Step 6: Final answer
    x = 2,456,680.22

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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.