Home / 3,119,421.47-4,679,685.03-1,413,495.86

Finding the Fourth Proportional to 3,119,421.47, 4,679,685.03 and 1,413,495.86

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Solution

The fourth proportional to 3,119,421.47, 4,679,685.03 and 1,413,495.86 is: 2,120,494.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,421.47 : 4,679,685.03 = 1,413,495.86 : x
  2. Step 2: Convert to fraction form
    3,119,421.47/4,679,685.03 = 1,413,495.86/x
  3. Step 3: Cross multiply
    3,119,421.47x = 4,679,685.03 × 1,413,495.86
  4. Step 4: Simplify right side
    3,119,421.47x = 6,614,715,416,008.98
  5. Step 5: Solve for x
    x = 6,614,715,416,008.98/3,119,421.47
  6. Step 6: Final answer
    x = 2,120,494.29

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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.