Home / 899,680.12-1,349,079.54-300,435.64

Finding the Fourth Proportional to 899,680.12, 1,349,079.54 and 300,435.64

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Solution

The fourth proportional to 899,680.12, 1,349,079.54 and 300,435.64 is: 450,506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,680.12 : 1,349,079.54 = 300,435.64 : x
  2. Step 2: Convert to fraction form
    899,680.12/1,349,079.54 = 300,435.64/x
  3. Step 3: Cross multiply
    899,680.12x = 1,349,079.54 × 300,435.64
  4. Step 4: Simplify right side
    899,680.12x = 405,311,575,010.81
  5. Step 5: Solve for x
    x = 405,311,575,010.81/899,680.12
  6. Step 6: Final answer
    x = 450,506.31

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1.5x scale

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.