Home / 1,087,384.41-1,630,178.60-479,739.69

Finding the Fourth Proportional to 1,087,384.41, 1,630,178.60 and 479,739.69

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Solution

The fourth proportional to 1,087,384.41, 1,630,178.60 and 479,739.69 is: 719,213.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,384.41 : 1,630,178.60 = 479,739.69 : x
  2. Step 2: Convert to fraction form
    1,087,384.41/1,630,178.60 = 479,739.69/x
  3. Step 3: Cross multiply
    1,087,384.41x = 1,630,178.60 × 479,739.69
  4. Step 4: Simplify right side
    1,087,384.41x = 782,061,373,809.94
  5. Step 5: Solve for x
    x = 782,061,373,809.94/1,087,384.41
  6. Step 6: Final answer
    x = 719,213.34

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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.