Home / 1,428,614.99-2,143,131.60-670,533.45

Finding the Fourth Proportional to 1,428,614.99, 2,143,131.60 and 670,533.45

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Solution

The fourth proportional to 1,428,614.99, 2,143,131.60 and 670,533.45 is: 1,005,898.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,614.99 : 2,143,131.60 = 670,533.45 : x
  2. Step 2: Convert to fraction form
    1,428,614.99/2,143,131.60 = 670,533.45/x
  3. Step 3: Cross multiply
    1,428,614.99x = 2,143,131.60 × 670,533.45
  4. Step 4: Simplify right side
    1,428,614.99x = 1,437,041,425,552.02
  5. Step 5: Solve for x
    x = 1,437,041,425,552.02/1,428,614.99
  6. Step 6: Final answer
    x = 1,005,898.33

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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.