Home / 1,528,964.70-2,295,218.76-820,376.70

Finding the Fourth Proportional to 1,528,964.70, 2,295,218.76 and 820,376.70

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Solution

The fourth proportional to 1,528,964.70, 2,295,218.76 and 820,376.70 is: 1,231,515.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,964.70 : 2,295,218.76 = 820,376.70 : x
  2. Step 2: Convert to fraction form
    1,528,964.70/2,295,218.76 = 820,376.70/x
  3. Step 3: Cross multiply
    1,528,964.70x = 2,295,218.76 × 820,376.70
  4. Step 4: Simplify right side
    1,528,964.70x = 1,882,943,992,106.89
  5. Step 5: Solve for x
    x = 1,882,943,992,106.89/1,528,964.70
  6. Step 6: Final answer
    x = 1,231,515.67

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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.