Home / 899,081.72-1,240,732.77-496,673.72

Finding the Fourth Proportional to 899,081.72, 1,240,732.77 and 496,673.72

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Solution

The fourth proportional to 899,081.72, 1,240,732.77 and 496,673.72 is: 685,409.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,081.72 : 1,240,732.77 = 496,673.72 : x
  2. Step 2: Convert to fraction form
    899,081.72/1,240,732.77 = 496,673.72/x
  3. Step 3: Cross multiply
    899,081.72x = 1,240,732.77 × 496,673.72
  4. Step 4: Simplify right side
    899,081.72x = 616,239,360,401.80
  5. Step 5: Solve for x
    x = 616,239,360,401.80/899,081.72
  6. Step 6: Final answer
    x = 685,409.73

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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.