Home / 291,746.40-437,619.60-289,903.20

Finding the Fourth Proportional to 291,746.40, 437,619.60 and 289,903.20

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Solution

The fourth proportional to 291,746.40, 437,619.60 and 289,903.20 is: 434,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,746.40 : 437,619.60 = 289,903.20 : x
  2. Step 2: Convert to fraction form
    291,746.40/437,619.60 = 289,903.20/x
  3. Step 3: Cross multiply
    291,746.40x = 437,619.60 × 289,903.20
  4. Step 4: Simplify right side
    291,746.40x = 126,867,322,422.72
  5. Step 5: Solve for x
    x = 126,867,322,422.72/291,746.40
  6. Step 6: Final answer
    x = 434,854.80

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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.