Home / 1,219,040.86-1,828,681.52-420,217.24

Finding the Fourth Proportional to 1,219,040.86, 1,828,681.52 and 420,217.24

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Solution

The fourth proportional to 1,219,040.86, 1,828,681.52 and 420,217.24 is: 630,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,040.86 : 1,828,681.52 = 420,217.24 : x
  2. Step 2: Convert to fraction form
    1,219,040.86/1,828,681.52 = 420,217.24/x
  3. Step 3: Cross multiply
    1,219,040.86x = 1,828,681.52 × 420,217.24
  4. Step 4: Simplify right side
    1,219,040.86x = 768,443,501,173.41
  5. Step 5: Solve for x
    x = 768,443,501,173.41/1,219,040.86
  6. Step 6: Final answer
    x = 630,367.30

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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.