Home / 898,638.23-1,240,074.56-490,661.48

Finding the Fourth Proportional to 898,638.23, 1,240,074.56 and 490,661.48

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Solution

The fourth proportional to 898,638.23, 1,240,074.56 and 490,661.48 is: 677,087.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,638.23 : 1,240,074.56 = 490,661.48 : x
  2. Step 2: Convert to fraction form
    898,638.23/1,240,074.56 = 490,661.48/x
  3. Step 3: Cross multiply
    898,638.23x = 1,240,074.56 × 490,661.48
  4. Step 4: Simplify right side
    898,638.23x = 608,456,823,246.79
  5. Step 5: Solve for x
    x = 608,456,823,246.79/898,638.23
  6. Step 6: Final answer
    x = 677,087.62

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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.