Home / 936,867.34-1,405,090.77-430,942.42

Finding the Fourth Proportional to 936,867.34, 1,405,090.77 and 430,942.42

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Solution

The fourth proportional to 936,867.34, 1,405,090.77 and 430,942.42 is: 646,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,867.34 : 1,405,090.77 = 430,942.42 : x
  2. Step 2: Convert to fraction form
    936,867.34/1,405,090.77 = 430,942.42/x
  3. Step 3: Cross multiply
    936,867.34x = 1,405,090.77 × 430,942.42
  4. Step 4: Simplify right side
    936,867.34x = 605,513,216,743.46
  5. Step 5: Solve for x
    x = 605,513,216,743.46/936,867.34
  6. Step 6: Final answer
    x = 646,316.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.