Home / 1,311,753.42-1,967,931.45-680,526.90

Finding the Fourth Proportional to 1,311,753.42, 1,967,931.45 and 680,526.90

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Solution

The fourth proportional to 1,311,753.42, 1,967,931.45 and 680,526.90 is: 1,020,946.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,753.42 : 1,967,931.45 = 680,526.90 : x
  2. Step 2: Convert to fraction form
    1,311,753.42/1,967,931.45 = 680,526.90/x
  3. Step 3: Cross multiply
    1,311,753.42x = 1,967,931.45 × 680,526.90
  4. Step 4: Simplify right side
    1,311,753.42x = 1,339,230,289,081.01
  5. Step 5: Solve for x
    x = 1,339,230,289,081.01/1,311,753.42
  6. Step 6: Final answer
    x = 1,020,946.67

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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.