Home / 849,740.14-1,274,878.12-400,442.86

Finding the Fourth Proportional to 849,740.14, 1,274,878.12 and 400,442.86

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Solution

The fourth proportional to 849,740.14, 1,274,878.12 and 400,442.86 is: 600,790.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,740.14 : 1,274,878.12 = 400,442.86 : x
  2. Step 2: Convert to fraction form
    849,740.14/1,274,878.12 = 400,442.86/x
  3. Step 3: Cross multiply
    849,740.14x = 1,274,878.12 × 400,442.86
  4. Step 4: Simplify right side
    849,740.14x = 510,515,840,524.22
  5. Step 5: Solve for x
    x = 510,515,840,524.22/849,740.14
  6. Step 6: Final answer
    x = 600,790.54

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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.