Home / 947,887.40-1,308,084.72-518,169.44

Finding the Fourth Proportional to 947,887.40, 1,308,084.72 and 518,169.44

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Solution

The fourth proportional to 947,887.40, 1,308,084.72 and 518,169.44 is: 715,073.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,887.40 : 1,308,084.72 = 518,169.44 : x
  2. Step 2: Convert to fraction form
    947,887.40/1,308,084.72 = 518,169.44/x
  3. Step 3: Cross multiply
    947,887.40x = 1,308,084.72 × 518,169.44
  4. Step 4: Simplify right side
    947,887.40x = 677,809,526,834.96
  5. Step 5: Solve for x
    x = 677,809,526,834.96/947,887.40
  6. Step 6: Final answer
    x = 715,073.89

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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.