Home / 811,004.84-1,119,138.54-448,400.24

Finding the Fourth Proportional to 811,004.84, 1,119,138.54 and 448,400.24

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Solution

The fourth proportional to 811,004.84, 1,119,138.54 and 448,400.24 is: 618,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,004.84 : 1,119,138.54 = 448,400.24 : x
  2. Step 2: Convert to fraction form
    811,004.84/1,119,138.54 = 448,400.24/x
  3. Step 3: Cross multiply
    811,004.84x = 1,119,138.54 × 448,400.24
  4. Step 4: Simplify right side
    811,004.84x = 501,821,989,929.25
  5. Step 5: Solve for x
    x = 501,821,989,929.25/811,004.84
  6. Step 6: Final answer
    x = 618,765.72

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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.