Home / 380,417.30-524,991.70-210,651.42

Finding the Fourth Proportional to 380,417.30, 524,991.70 and 210,651.42

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Solution

The fourth proportional to 380,417.30, 524,991.70 and 210,651.42 is: 290,707.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,417.30 : 524,991.70 = 210,651.42 : x
  2. Step 2: Convert to fraction form
    380,417.30/524,991.70 = 210,651.42/x
  3. Step 3: Cross multiply
    380,417.30x = 524,991.70 × 210,651.42
  4. Step 4: Simplify right side
    380,417.30x = 110,590,247,093.21
  5. Step 5: Solve for x
    x = 110,590,247,093.21/380,417.30
  6. Step 6: Final answer
    x = 290,707.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.