Home / 1,276,809.92-1,915,779.02-669,453.06

Finding the Fourth Proportional to 1,276,809.92, 1,915,779.02 and 669,453.06

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Solution

The fourth proportional to 1,276,809.92, 1,915,779.02 and 669,453.06 is: 1,004,475.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,809.92 : 1,915,779.02 = 669,453.06 : x
  2. Step 2: Convert to fraction form
    1,276,809.92/1,915,779.02 = 669,453.06/x
  3. Step 3: Cross multiply
    1,276,809.92x = 1,915,779.02 × 669,453.06
  4. Step 4: Simplify right side
    1,276,809.92x = 1,282,524,123,875.54
  5. Step 5: Solve for x
    x = 1,282,524,123,875.54/1,276,809.92
  6. Step 6: Final answer
    x = 1,004,475.38

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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.