Home / 759,169.20-1,047,653.76-419,637.36

Finding the Fourth Proportional to 759,169.20, 1,047,653.76 and 419,637.36

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Solution

The fourth proportional to 759,169.20, 1,047,653.76 and 419,637.36 is: 579,099.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,169.20 : 1,047,653.76 = 419,637.36 : x
  2. Step 2: Convert to fraction form
    759,169.20/1,047,653.76 = 419,637.36/x
  3. Step 3: Cross multiply
    759,169.20x = 1,047,653.76 × 419,637.36
  4. Step 4: Simplify right side
    759,169.20x = 439,634,658,040.47
  5. Step 5: Solve for x
    x = 439,634,658,040.47/759,169.20
  6. Step 6: Final answer
    x = 579,099.70

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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.