Home / 1,409,871.60-2,114,889.57-398,908.98

Finding the Fourth Proportional to 1,409,871.60, 2,114,889.57 and 398,908.98

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Solution

The fourth proportional to 1,409,871.60, 2,114,889.57 and 398,908.98 is: 598,386.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,871.60 : 2,114,889.57 = 398,908.98 : x
  2. Step 2: Convert to fraction form
    1,409,871.60/2,114,889.57 = 398,908.98/x
  3. Step 3: Cross multiply
    1,409,871.60x = 2,114,889.57 × 398,908.98
  4. Step 4: Simplify right side
    1,409,871.60x = 843,648,441,181.34
  5. Step 5: Solve for x
    x = 843,648,441,181.34/1,409,871.60
  6. Step 6: Final answer
    x = 598,386.72

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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.