Home / 405,015.60-607,407.30-120,694.26

Finding the Fourth Proportional to 405,015.60, 607,407.30 and 120,694.26

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Solution

The fourth proportional to 405,015.60, 607,407.30 and 120,694.26 is: 181,006.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,015.60 : 607,407.30 = 120,694.26 : x
  2. Step 2: Convert to fraction form
    405,015.60/607,407.30 = 120,694.26/x
  3. Step 3: Cross multiply
    405,015.60x = 607,407.30 × 120,694.26
  4. Step 4: Simplify right side
    405,015.60x = 73,310,574,592.10
  5. Step 5: Solve for x
    x = 73,310,574,592.10/405,015.60
  6. Step 6: Final answer
    x = 181,006.79

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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.