Home / 826,483.19-1,239,243.08-320,453.01

Finding the Fourth Proportional to 826,483.19, 1,239,243.08 and 320,453.01

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Solution

The fourth proportional to 826,483.19, 1,239,243.08 and 320,453.01 is: 480,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,483.19 : 1,239,243.08 = 320,453.01 : x
  2. Step 2: Convert to fraction form
    826,483.19/1,239,243.08 = 320,453.01/x
  3. Step 3: Cross multiply
    826,483.19x = 1,239,243.08 × 320,453.01
  4. Step 4: Simplify right side
    826,483.19x = 397,119,173,505.41
  5. Step 5: Solve for x
    x = 397,119,173,505.41/826,483.19
  6. Step 6: Final answer
    x = 480,492.74

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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.