Home / 505,822.21-698,026.47-276,374.59

Finding the Fourth Proportional to 505,822.21, 698,026.47 and 276,374.59

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Solution

The fourth proportional to 505,822.21, 698,026.47 and 276,374.59 is: 381,392.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,822.21 : 698,026.47 = 276,374.59 : x
  2. Step 2: Convert to fraction form
    505,822.21/698,026.47 = 276,374.59/x
  3. Step 3: Cross multiply
    505,822.21x = 698,026.47 × 276,374.59
  4. Step 4: Simplify right side
    505,822.21x = 192,916,779,455.40
  5. Step 5: Solve for x
    x = 192,916,779,455.40/505,822.21
  6. Step 6: Final answer
    x = 381,392.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.