Home / 682,426.59-1,021,540.37-445,258.59

Finding the Fourth Proportional to 682,426.59, 1,021,540.37 and 445,258.59

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Solution

The fourth proportional to 682,426.59, 1,021,540.37 and 445,258.59 is: 666,518.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,426.59 : 1,021,540.37 = 445,258.59 : x
  2. Step 2: Convert to fraction form
    682,426.59/1,021,540.37 = 445,258.59/x
  3. Step 3: Cross multiply
    682,426.59x = 1,021,540.37 × 445,258.59
  4. Step 4: Simplify right side
    682,426.59x = 454,849,622,547.99
  5. Step 5: Solve for x
    x = 454,849,622,547.99/682,426.59
  6. Step 6: Final answer
    x = 666,518.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.