Home / 879,095.20-1,318,642.80-816,109.60

Finding the Fourth Proportional to 879,095.20, 1,318,642.80 and 816,109.60

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Solution

The fourth proportional to 879,095.20, 1,318,642.80 and 816,109.60 is: 1,224,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,095.20 : 1,318,642.80 = 816,109.60 : x
  2. Step 2: Convert to fraction form
    879,095.20/1,318,642.80 = 816,109.60/x
  3. Step 3: Cross multiply
    879,095.20x = 1,318,642.80 × 816,109.60
  4. Step 4: Simplify right side
    879,095.20x = 1,076,157,048,050.88
  5. Step 5: Solve for x
    x = 1,076,157,048,050.88/879,095.20
  6. Step 6: Final answer
    x = 1,224,164.40

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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.