Home / 898,297.63-1,239,669.49-490,416.66

Finding the Fourth Proportional to 898,297.63, 1,239,669.49 and 490,416.66

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Solution

The fourth proportional to 898,297.63, 1,239,669.49 and 490,416.66 is: 676,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,297.63 : 1,239,669.49 = 490,416.66 : x
  2. Step 2: Convert to fraction form
    898,297.63/1,239,669.49 = 490,416.66/x
  3. Step 3: Cross multiply
    898,297.63x = 1,239,669.49 × 490,416.66
  4. Step 4: Simplify right side
    898,297.63x = 607,954,570,789.70
  5. Step 5: Solve for x
    x = 607,954,570,789.70/898,297.63
  6. Step 6: Final answer
    x = 676,785.23

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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.