Home / 898,536.60-1,240,009.53-490,659.75

Finding the Fourth Proportional to 898,536.60, 1,240,009.53 and 490,659.75

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Solution

The fourth proportional to 898,536.60, 1,240,009.53 and 490,659.75 is: 677,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,536.60 : 1,240,009.53 = 490,659.75 : x
  2. Step 2: Convert to fraction form
    898,536.60/1,240,009.53 = 490,659.75/x
  3. Step 3: Cross multiply
    898,536.60x = 1,240,009.53 × 490,659.75
  4. Step 4: Simplify right side
    898,536.60x = 608,422,765,987.42
  5. Step 5: Solve for x
    x = 608,422,765,987.42/898,536.60
  6. Step 6: Final answer
    x = 677,126.30

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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.