Home / 1,260,236.88-1,890,355.78-313,607.60

Finding the Fourth Proportional to 1,260,236.88, 1,890,355.78 and 313,607.60

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Solution

The fourth proportional to 1,260,236.88, 1,890,355.78 and 313,607.60 is: 470,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,236.88 : 1,890,355.78 = 313,607.60 : x
  2. Step 2: Convert to fraction form
    1,260,236.88/1,890,355.78 = 313,607.60/x
  3. Step 3: Cross multiply
    1,260,236.88x = 1,890,355.78 × 313,607.60
  4. Step 4: Simplify right side
    1,260,236.88x = 592,829,935,576.95
  5. Step 5: Solve for x
    x = 592,829,935,576.95/1,260,236.88
  6. Step 6: Final answer
    x = 470,411.51

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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.