Home / 1,630,011.98-2,445,549.21-819,978.36

Finding the Fourth Proportional to 1,630,011.98, 2,445,549.21 and 819,978.36

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Solution

The fourth proportional to 1,630,011.98, 2,445,549.21 and 819,978.36 is: 1,230,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,011.98 : 2,445,549.21 = 819,978.36 : x
  2. Step 2: Convert to fraction form
    1,630,011.98/2,445,549.21 = 819,978.36/x
  3. Step 3: Cross multiply
    1,630,011.98x = 2,445,549.21 × 819,978.36
  4. Step 4: Simplify right side
    1,630,011.98x = 2,005,297,430,515.10
  5. Step 5: Solve for x
    x = 2,005,297,430,515.10/1,630,011.98
  6. Step 6: Final answer
    x = 1,230,234.78

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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.