Home / 672,340.54-1,009,102.42-352,720.80

Finding the Fourth Proportional to 672,340.54, 1,009,102.42 and 352,720.80

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Solution

The fourth proportional to 672,340.54, 1,009,102.42 and 352,720.80 is: 529,391.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,340.54 : 1,009,102.42 = 352,720.80 : x
  2. Step 2: Convert to fraction form
    672,340.54/1,009,102.42 = 352,720.80/x
  3. Step 3: Cross multiply
    672,340.54x = 1,009,102.42 × 352,720.80
  4. Step 4: Simplify right side
    672,340.54x = 355,931,412,864.34
  5. Step 5: Solve for x
    x = 355,931,412,864.34/672,340.54
  6. Step 6: Final answer
    x = 529,391.57

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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.