Home / 1,210,355.80-1,815,533.70-368,906.20

Finding the Fourth Proportional to 1,210,355.80, 1,815,533.70 and 368,906.20

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Solution

The fourth proportional to 1,210,355.80, 1,815,533.70 and 368,906.20 is: 553,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,355.80 : 1,815,533.70 = 368,906.20 : x
  2. Step 2: Convert to fraction form
    1,210,355.80/1,815,533.70 = 368,906.20/x
  3. Step 3: Cross multiply
    1,210,355.80x = 1,815,533.70 × 368,906.20
  4. Step 4: Simplify right side
    1,210,355.80x = 669,761,638,238.94
  5. Step 5: Solve for x
    x = 669,761,638,238.94/1,210,355.80
  6. Step 6: Final answer
    x = 553,359.30

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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.