Home / 898,297.88-1,239,669.83-490,416.92

Finding the Fourth Proportional to 898,297.88, 1,239,669.83 and 490,416.92

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Solution

The fourth proportional to 898,297.88, 1,239,669.83 and 490,416.92 is: 676,785.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,297.88 : 1,239,669.83 = 490,416.92 : x
  2. Step 2: Convert to fraction form
    898,297.88/1,239,669.83 = 490,416.92/x
  3. Step 3: Cross multiply
    898,297.88x = 1,239,669.83 × 490,416.92
  4. Step 4: Simplify right side
    898,297.88x = 607,955,054,873.22
  5. Step 5: Solve for x
    x = 607,955,054,873.22/898,297.88
  6. Step 6: Final answer
    x = 676,785.58

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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.