Home / 1,130,474.69-1,560,054.70-621,209.87

Finding the Fourth Proportional to 1,130,474.69, 1,560,054.70 and 621,209.87

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Solution

The fourth proportional to 1,130,474.69, 1,560,054.70 and 621,209.87 is: 857,269.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,474.69 : 1,560,054.70 = 621,209.87 : x
  2. Step 2: Convert to fraction form
    1,130,474.69/1,560,054.70 = 621,209.87/x
  3. Step 3: Cross multiply
    1,130,474.69x = 1,560,054.70 × 621,209.87
  4. Step 4: Simplify right side
    1,130,474.69x = 969,121,377,379.89
  5. Step 5: Solve for x
    x = 969,121,377,379.89/1,130,474.69
  6. Step 6: Final answer
    x = 857,269.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.