Home / 898,622.91-1,240,120.53-490,727.57

Finding the Fourth Proportional to 898,622.91, 1,240,120.53 and 490,727.57

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Solution

The fourth proportional to 898,622.91, 1,240,120.53 and 490,727.57 is: 677,215.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,622.91 : 1,240,120.53 = 490,727.57 : x
  2. Step 2: Convert to fraction form
    898,622.91/1,240,120.53 = 490,727.57/x
  3. Step 3: Cross multiply
    898,622.91x = 1,240,120.53 × 490,727.57
  4. Step 4: Simplify right side
    898,622.91x = 608,561,327,993.41
  5. Step 5: Solve for x
    x = 608,561,327,993.41/898,622.91
  6. Step 6: Final answer
    x = 677,215.46

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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.