Home / 1,257,338.80-1,886,289.41-458,620.34

Finding the Fourth Proportional to 1,257,338.80, 1,886,289.41 and 458,620.34

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Solution

The fourth proportional to 1,257,338.80, 1,886,289.41 and 458,620.34 is: 688,033.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,338.80 : 1,886,289.41 = 458,620.34 : x
  2. Step 2: Convert to fraction form
    1,257,338.80/1,886,289.41 = 458,620.34/x
  3. Step 3: Cross multiply
    1,257,338.80x = 1,886,289.41 × 458,620.34
  4. Step 4: Simplify right side
    1,257,338.80x = 865,090,690,552.60
  5. Step 5: Solve for x
    x = 865,090,690,552.60/1,257,338.80
  6. Step 6: Final answer
    x = 688,033.08

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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.