Home / 879,416.80-1,319,125.20-770,941.60

Finding the Fourth Proportional to 879,416.80, 1,319,125.20 and 770,941.60

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Solution

The fourth proportional to 879,416.80, 1,319,125.20 and 770,941.60 is: 1,156,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,416.80 : 1,319,125.20 = 770,941.60 : x
  2. Step 2: Convert to fraction form
    879,416.80/1,319,125.20 = 770,941.60/x
  3. Step 3: Cross multiply
    879,416.80x = 1,319,125.20 × 770,941.60
  4. Step 4: Simplify right side
    879,416.80x = 1,016,968,492,288.32
  5. Step 5: Solve for x
    x = 1,016,968,492,288.32/879,416.80
  6. Step 6: Final answer
    x = 1,156,412.40

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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.