Home / 1,210,470.40-1,815,511.20-368,826.40

Finding the Fourth Proportional to 1,210,470.40, 1,815,511.20 and 368,826.40

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Solution

The fourth proportional to 1,210,470.40, 1,815,511.20 and 368,826.40 is: 553,180.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,470.40 : 1,815,511.20 = 368,826.40 : x
  2. Step 2: Convert to fraction form
    1,210,470.40/1,815,511.20 = 368,826.40/x
  3. Step 3: Cross multiply
    1,210,470.40x = 1,815,511.20 × 368,826.40
  4. Step 4: Simplify right side
    1,210,470.40x = 669,608,460,055.68
  5. Step 5: Solve for x
    x = 669,608,460,055.68/1,210,470.40
  6. Step 6: Final answer
    x = 553,180.37

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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.