Home / 699,329.60-1,048,216.80-299,902.40

Finding the Fourth Proportional to 699,329.60, 1,048,216.80 and 299,902.40

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Solution

The fourth proportional to 699,329.60, 1,048,216.80 and 299,902.40 is: 449,520.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,329.60 : 1,048,216.80 = 299,902.40 : x
  2. Step 2: Convert to fraction form
    699,329.60/1,048,216.80 = 299,902.40/x
  3. Step 3: Cross multiply
    699,329.60x = 1,048,216.80 × 299,902.40
  4. Step 4: Simplify right side
    699,329.60x = 314,362,734,040.32
  5. Step 5: Solve for x
    x = 314,362,734,040.32/699,329.60
  6. Step 6: Final answer
    x = 449,520.13

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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.