Home / 380,304.08-524,260.44-289,501.76

Finding the Fourth Proportional to 380,304.08, 524,260.44 and 289,501.76

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Solution

The fourth proportional to 380,304.08, 524,260.44 and 289,501.76 is: 399,086.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,304.08 : 524,260.44 = 289,501.76 : x
  2. Step 2: Convert to fraction form
    380,304.08/524,260.44 = 289,501.76/x
  3. Step 3: Cross multiply
    380,304.08x = 524,260.44 × 289,501.76
  4. Step 4: Simplify right side
    380,304.08x = 151,774,320,078.37
  5. Step 5: Solve for x
    x = 151,774,320,078.37/380,304.08
  6. Step 6: Final answer
    x = 399,086.75

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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.