Home / 700,326.40-1,050,489.60-419,699.20

Finding the Fourth Proportional to 700,326.40, 1,050,489.60 and 419,699.20

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Solution

The fourth proportional to 700,326.40, 1,050,489.60 and 419,699.20 is: 629,548.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,326.40 : 1,050,489.60 = 419,699.20 : x
  2. Step 2: Convert to fraction form
    700,326.40/1,050,489.60 = 419,699.20/x
  3. Step 3: Cross multiply
    700,326.40x = 1,050,489.60 × 419,699.20
  4. Step 4: Simplify right side
    700,326.40x = 440,889,644,728.32
  5. Step 5: Solve for x
    x = 440,889,644,728.32/700,326.40
  6. Step 6: Final answer
    x = 629,548.80

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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.