Home / 1,191,870.81-1,787,244.26-433,178.61

Finding the Fourth Proportional to 1,191,870.81, 1,787,244.26 and 433,178.61

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Solution

The fourth proportional to 1,191,870.81, 1,787,244.26 and 433,178.61 is: 649,563.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,870.81 : 1,787,244.26 = 433,178.61 : x
  2. Step 2: Convert to fraction form
    1,191,870.81/1,787,244.26 = 433,178.61/x
  3. Step 3: Cross multiply
    1,191,870.81x = 1,787,244.26 × 433,178.61
  4. Step 4: Simplify right side
    1,191,870.81x = 774,195,982,111.39
  5. Step 5: Solve for x
    x = 774,195,982,111.39/1,191,870.81
  6. Step 6: Final answer
    x = 649,563.67

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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.