Home / 324,417.85-444,445.03-312,288.53

Finding the Fourth Proportional to 324,417.85, 444,445.03 and 312,288.53

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Solution

The fourth proportional to 324,417.85, 444,445.03 and 312,288.53 is: 427,828.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,417.85 : 444,445.03 = 312,288.53 : x
  2. Step 2: Convert to fraction form
    324,417.85/444,445.03 = 312,288.53/x
  3. Step 3: Cross multiply
    324,417.85x = 444,445.03 × 312,288.53
  4. Step 4: Simplify right side
    324,417.85x = 138,795,085,084.51
  5. Step 5: Solve for x
    x = 138,795,085,084.51/324,417.85
  6. Step 6: Final answer
    x = 427,828.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.