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Finding the Fourth Proportional to 501,418.32, 751,420.35 and 276,879.84

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Solution

The fourth proportional to 501,418.32, 751,420.35 and 276,879.84 is: 414,929.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,418.32 : 751,420.35 = 276,879.84 : x
  2. Step 2: Convert to fraction form
    501,418.32/751,420.35 = 276,879.84/x
  3. Step 3: Cross multiply
    501,418.32x = 751,420.35 × 276,879.84
  4. Step 4: Simplify right side
    501,418.32x = 208,053,146,280.74
  5. Step 5: Solve for x
    x = 208,053,146,280.74/501,418.32
  6. Step 6: Final answer
    x = 414,929.29

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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.