Home / 1,087,899.86-1,631,849.49-339,945.86

Finding the Fourth Proportional to 1,087,899.86, 1,631,849.49 and 339,945.86

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Solution

The fourth proportional to 1,087,899.86, 1,631,849.49 and 339,945.86 is: 509,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,899.86 : 1,631,849.49 = 339,945.86 : x
  2. Step 2: Convert to fraction form
    1,087,899.86/1,631,849.49 = 339,945.86/x
  3. Step 3: Cross multiply
    1,087,899.86x = 1,631,849.49 × 339,945.86
  4. Step 4: Simplify right side
    1,087,899.86x = 554,740,482,348.24
  5. Step 5: Solve for x
    x = 554,740,482,348.24/1,087,899.86
  6. Step 6: Final answer
    x = 509,918.70

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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.