Home / 810,920.70-1,119,025.35-448,323.39

Finding the Fourth Proportional to 810,920.70, 1,119,025.35 and 448,323.39

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Solution

The fourth proportional to 810,920.70, 1,119,025.35 and 448,323.39 is: 618,661.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,920.70 : 1,119,025.35 = 448,323.39 : x
  2. Step 2: Convert to fraction form
    810,920.70/1,119,025.35 = 448,323.39/x
  3. Step 3: Cross multiply
    810,920.70x = 1,119,025.35 × 448,323.39
  4. Step 4: Simplify right side
    810,920.70x = 501,685,238,407.94
  5. Step 5: Solve for x
    x = 501,685,238,407.94/810,920.70
  6. Step 6: Final answer
    x = 618,661.28

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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.