Home / 947,975.64-1,308,153.42-518,170.20

Finding the Fourth Proportional to 947,975.64, 1,308,153.42 and 518,170.20

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Solution

The fourth proportional to 947,975.64, 1,308,153.42 and 518,170.20 is: 715,045.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,975.64 : 1,308,153.42 = 518,170.20 : x
  2. Step 2: Convert to fraction form
    947,975.64/1,308,153.42 = 518,170.20/x
  3. Step 3: Cross multiply
    947,975.64x = 1,308,153.42 × 518,170.20
  4. Step 4: Simplify right side
    947,975.64x = 677,846,119,272.08
  5. Step 5: Solve for x
    x = 677,846,119,272.08/947,975.64
  6. Step 6: Final answer
    x = 715,045.93

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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.