Home / 899,907.48-1,242,185.04-518,086.44

Finding the Fourth Proportional to 899,907.48, 1,242,185.04 and 518,086.44

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Solution

The fourth proportional to 899,907.48, 1,242,185.04 and 518,086.44 is: 715,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,907.48 : 1,242,185.04 = 518,086.44 : x
  2. Step 2: Convert to fraction form
    899,907.48/1,242,185.04 = 518,086.44/x
  3. Step 3: Cross multiply
    899,907.48x = 1,242,185.04 × 518,086.44
  4. Step 4: Simplify right side
    899,907.48x = 643,559,225,194.86
  5. Step 5: Solve for x
    x = 643,559,225,194.86/899,907.48
  6. Step 6: Final answer
    x = 715,139.32

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Double scale
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Similar ratio
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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.