Home / 1,276,898.28-1,915,911.63-669,541.56

Finding the Fourth Proportional to 1,276,898.28, 1,915,911.63 and 669,541.56

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Solution

The fourth proportional to 1,276,898.28, 1,915,911.63 and 669,541.56 is: 1,004,608.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,898.28 : 1,915,911.63 = 669,541.56 : x
  2. Step 2: Convert to fraction form
    1,276,898.28/1,915,911.63 = 669,541.56/x
  3. Step 3: Cross multiply
    1,276,898.28x = 1,915,911.63 × 669,541.56
  4. Step 4: Simplify right side
    1,276,898.28x = 1,282,782,461,572.34
  5. Step 5: Solve for x
    x = 1,282,782,461,572.34/1,276,898.28
  6. Step 6: Final answer
    x = 1,004,608.18

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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.