Home / 698,803.20-1,047,686.40-299,116.80

Finding the Fourth Proportional to 698,803.20, 1,047,686.40 and 299,116.80

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Solution

The fourth proportional to 698,803.20, 1,047,686.40 and 299,116.80 is: 448,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,803.20 : 1,047,686.40 = 299,116.80 : x
  2. Step 2: Convert to fraction form
    698,803.20/1,047,686.40 = 299,116.80/x
  3. Step 3: Cross multiply
    698,803.20x = 1,047,686.40 × 299,116.80
  4. Step 4: Simplify right side
    698,803.20x = 313,380,603,371.52
  5. Step 5: Solve for x
    x = 313,380,603,371.52/698,803.20
  6. Step 6: Final answer
    x = 448,453.30

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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.