Home / 830,611.64-1,245,522.90-430,851.80

Finding the Fourth Proportional to 830,611.64, 1,245,522.90 and 430,851.80

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Solution

The fourth proportional to 830,611.64, 1,245,522.90 and 430,851.80 is: 646,073.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,611.64 : 1,245,522.90 = 430,851.80 : x
  2. Step 2: Convert to fraction form
    830,611.64/1,245,522.90 = 430,851.80/x
  3. Step 3: Cross multiply
    830,611.64x = 1,245,522.90 × 430,851.80
  4. Step 4: Simplify right side
    830,611.64x = 536,635,783,406.22
  5. Step 5: Solve for x
    x = 536,635,783,406.22/830,611.64
  6. Step 6: Final answer
    x = 646,073.04

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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.