Home / 988,835.80-1,483,253.70-811,688.80

Finding the Fourth Proportional to 988,835.80, 1,483,253.70 and 811,688.80

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Solution

The fourth proportional to 988,835.80, 1,483,253.70 and 811,688.80 is: 1,217,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,835.80 : 1,483,253.70 = 811,688.80 : x
  2. Step 2: Convert to fraction form
    988,835.80/1,483,253.70 = 811,688.80/x
  3. Step 3: Cross multiply
    988,835.80x = 1,483,253.70 × 811,688.80
  4. Step 4: Simplify right side
    988,835.80x = 1,203,940,415,848.56
  5. Step 5: Solve for x
    x = 1,203,940,415,848.56/988,835.80
  6. Step 6: Final answer
    x = 1,217,533.20

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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.