Home / 915,409.60-1,373,114.40-828,318.40

Finding the Fourth Proportional to 915,409.60, 1,373,114.40 and 828,318.40

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Solution

The fourth proportional to 915,409.60, 1,373,114.40 and 828,318.40 is: 1,242,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,409.60 : 1,373,114.40 = 828,318.40 : x
  2. Step 2: Convert to fraction form
    915,409.60/1,373,114.40 = 828,318.40/x
  3. Step 3: Cross multiply
    915,409.60x = 1,373,114.40 × 828,318.40
  4. Step 4: Simplify right side
    915,409.60x = 1,137,375,922,824.96
  5. Step 5: Solve for x
    x = 1,137,375,922,824.96/915,409.60
  6. Step 6: Final answer
    x = 1,242,477.60

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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.