Home / 1,139,939.20-1,709,908.80-475,004.80

Finding the Fourth Proportional to 1,139,939.20, 1,709,908.80 and 475,004.80

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Solution

The fourth proportional to 1,139,939.20, 1,709,908.80 and 475,004.80 is: 712,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,939.20 : 1,709,908.80 = 475,004.80 : x
  2. Step 2: Convert to fraction form
    1,139,939.20/1,709,908.80 = 475,004.80/x
  3. Step 3: Cross multiply
    1,139,939.20x = 1,709,908.80 × 475,004.80
  4. Step 4: Simplify right side
    1,139,939.20x = 812,214,887,562.24
  5. Step 5: Solve for x
    x = 812,214,887,562.24/1,139,939.20
  6. Step 6: Final answer
    x = 712,507.20

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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.