Home / 948,450.09-1,308,844.65-518,720.79

Finding the Fourth Proportional to 948,450.09, 1,308,844.65 and 518,720.79

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Solution

The fourth proportional to 948,450.09, 1,308,844.65 and 518,720.79 is: 715,825.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,450.09 : 1,308,844.65 = 518,720.79 : x
  2. Step 2: Convert to fraction form
    948,450.09/1,308,844.65 = 518,720.79/x
  3. Step 3: Cross multiply
    948,450.09x = 1,308,844.65 × 518,720.79
  4. Step 4: Simplify right side
    948,450.09x = 678,924,930,835.27
  5. Step 5: Solve for x
    x = 678,924,930,835.27/948,450.09
  6. Step 6: Final answer
    x = 715,825.68

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Double scale
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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.