Home / 490,582.10-677,009.40-296,987.24

Finding the Fourth Proportional to 490,582.10, 677,009.40 and 296,987.24

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Solution

The fourth proportional to 490,582.10, 677,009.40 and 296,987.24 is: 409,846.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,582.10 : 677,009.40 = 296,987.24 : x
  2. Step 2: Convert to fraction form
    490,582.10/677,009.40 = 296,987.24/x
  3. Step 3: Cross multiply
    490,582.10x = 677,009.40 × 296,987.24
  4. Step 4: Simplify right side
    490,582.10x = 201,063,153,160.06
  5. Step 5: Solve for x
    x = 201,063,153,160.06/490,582.10
  6. Step 6: Final answer
    x = 409,846.09

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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.