Home / 672,261.60-1,008,392.40-520,046.40

Finding the Fourth Proportional to 672,261.60, 1,008,392.40 and 520,046.40

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Solution

The fourth proportional to 672,261.60, 1,008,392.40 and 520,046.40 is: 780,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,261.60 : 1,008,392.40 = 520,046.40 : x
  2. Step 2: Convert to fraction form
    672,261.60/1,008,392.40 = 520,046.40/x
  3. Step 3: Cross multiply
    672,261.60x = 1,008,392.40 × 520,046.40
  4. Step 4: Simplify right side
    672,261.60x = 524,410,837,407.36
  5. Step 5: Solve for x
    x = 524,410,837,407.36/672,261.60
  6. Step 6: Final answer
    x = 780,069.60

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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.