Home / 767,643.60-1,151,465.40-268,942.80

Finding the Fourth Proportional to 767,643.60, 1,151,465.40 and 268,942.80

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Solution

The fourth proportional to 767,643.60, 1,151,465.40 and 268,942.80 is: 403,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,643.60 : 1,151,465.40 = 268,942.80 : x
  2. Step 2: Convert to fraction form
    767,643.60/1,151,465.40 = 268,942.80/x
  3. Step 3: Cross multiply
    767,643.60x = 1,151,465.40 × 268,942.80
  4. Step 4: Simplify right side
    767,643.60x = 309,678,328,779.12
  5. Step 5: Solve for x
    x = 309,678,328,779.12/767,643.60
  6. Step 6: Final answer
    x = 403,414.20

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1.5x scale

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.