Home / 684,929.36-945,203.66-379,018.64

Finding the Fourth Proportional to 684,929.36, 945,203.66 and 379,018.64

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Solution

The fourth proportional to 684,929.36, 945,203.66 and 379,018.64 is: 523,046.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,929.36 : 945,203.66 = 379,018.64 : x
  2. Step 2: Convert to fraction form
    684,929.36/945,203.66 = 379,018.64/x
  3. Step 3: Cross multiply
    684,929.36x = 945,203.66 × 379,018.64
  4. Step 4: Simplify right side
    684,929.36x = 358,249,805,736.22
  5. Step 5: Solve for x
    x = 358,249,805,736.22/684,929.36
  6. Step 6: Final answer
    x = 523,046.36

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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.