Home / 948,504.53-1,308,967.56-518,784.68

Finding the Fourth Proportional to 948,504.53, 1,308,967.56 and 518,784.68

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Solution

The fourth proportional to 948,504.53, 1,308,967.56 and 518,784.68 is: 715,939.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,504.53 : 1,308,967.56 = 518,784.68 : x
  2. Step 2: Convert to fraction form
    948,504.53/1,308,967.56 = 518,784.68/x
  3. Step 3: Cross multiply
    948,504.53x = 1,308,967.56 × 518,784.68
  4. Step 4: Simplify right side
    948,504.53x = 679,072,310,200.14
  5. Step 5: Solve for x
    x = 679,072,310,200.14/948,504.53
  6. Step 6: Final answer
    x = 715,939.98

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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.