Home / 879,899.45-1,214,251.48-492,718.37

Finding the Fourth Proportional to 879,899.45, 1,214,251.48 and 492,718.37

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Solution

The fourth proportional to 879,899.45, 1,214,251.48 and 492,718.37 is: 679,945.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,899.45 : 1,214,251.48 = 492,718.37 : x
  2. Step 2: Convert to fraction form
    879,899.45/1,214,251.48 = 492,718.37/x
  3. Step 3: Cross multiply
    879,899.45x = 1,214,251.48 × 492,718.37
  4. Step 4: Simplify right side
    879,899.45x = 598,284,013,647.21
  5. Step 5: Solve for x
    x = 598,284,013,647.21/879,899.45
  6. Step 6: Final answer
    x = 679,945.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.