Home / 661,619.08-913,242.26-375,329.48

Finding the Fourth Proportional to 661,619.08, 913,242.26 and 375,329.48

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Solution

The fourth proportional to 661,619.08, 913,242.26 and 375,329.48 is: 518,072.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,619.08 : 913,242.26 = 375,329.48 : x
  2. Step 2: Convert to fraction form
    661,619.08/913,242.26 = 375,329.48/x
  3. Step 3: Cross multiply
    661,619.08x = 913,242.26 × 375,329.48
  4. Step 4: Simplify right side
    661,619.08x = 342,766,742,559.83
  5. Step 5: Solve for x
    x = 342,766,742,559.83/661,619.08
  6. Step 6: Final answer
    x = 518,072.64

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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.