Home / 713,316.63-1,070,438.60-308,903.79

Finding the Fourth Proportional to 713,316.63, 1,070,438.60 and 308,903.79

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Solution

The fourth proportional to 713,316.63, 1,070,438.60 and 308,903.79 is: 463,556.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,316.63 : 1,070,438.60 = 308,903.79 : x
  2. Step 2: Convert to fraction form
    713,316.63/1,070,438.60 = 308,903.79/x
  3. Step 3: Cross multiply
    713,316.63x = 1,070,438.60 × 308,903.79
  4. Step 4: Simplify right side
    713,316.63x = 330,662,540,502.29
  5. Step 5: Solve for x
    x = 330,662,540,502.29/713,316.63
  6. Step 6: Final answer
    x = 463,556.47

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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.