Home / 698,619.21-1,047,928.68-299,000.85

Finding the Fourth Proportional to 698,619.21, 1,047,928.68 and 299,000.85

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Solution

The fourth proportional to 698,619.21, 1,047,928.68 and 299,000.85 is: 448,501.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,619.21 : 1,047,928.68 = 299,000.85 : x
  2. Step 2: Convert to fraction form
    698,619.21/1,047,928.68 = 299,000.85/x
  3. Step 3: Cross multiply
    698,619.21x = 1,047,928.68 × 299,000.85
  4. Step 4: Simplify right side
    698,619.21x = 313,331,566,059.38
  5. Step 5: Solve for x
    x = 313,331,566,059.38/698,619.21
  6. Step 6: Final answer
    x = 448,501.22

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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.