Home / 954,400.32-1,430,550.56-393,128.64

Finding the Fourth Proportional to 954,400.32, 1,430,550.56 and 393,128.64

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Solution

The fourth proportional to 954,400.32, 1,430,550.56 and 393,128.64 is: 589,260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    954,400.32 : 1,430,550.56 = 393,128.64 : x
  2. Step 2: Convert to fraction form
    954,400.32/1,430,550.56 = 393,128.64/x
  3. Step 3: Cross multiply
    954,400.32x = 1,430,550.56 × 393,128.64
  4. Step 4: Simplify right side
    954,400.32x = 562,390,396,104.04
  5. Step 5: Solve for x
    x = 562,390,396,104.04/954,400.32
  6. Step 6: Final answer
    x = 589,260.49

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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.