Home / 810,588.36-1,118,669.86-448,004.42

Finding the Fourth Proportional to 810,588.36, 1,118,669.86 and 448,004.42

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Solution

The fourth proportional to 810,588.36, 1,118,669.86 and 448,004.42 is: 618,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,588.36 : 1,118,669.86 = 448,004.42 : x
  2. Step 2: Convert to fraction form
    810,588.36/1,118,669.86 = 448,004.42/x
  3. Step 3: Cross multiply
    810,588.36x = 1,118,669.86 × 448,004.42
  4. Step 4: Simplify right side
    810,588.36x = 501,169,041,800.78
  5. Step 5: Solve for x
    x = 501,169,041,800.78/810,588.36
  6. Step 6: Final answer
    x = 618,278.11

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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.