Home / 979,603.80-1,470,269.70-579,744.60

Finding the Fourth Proportional to 979,603.80, 1,470,269.70 and 579,744.60

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Solution

The fourth proportional to 979,603.80, 1,470,269.70 and 579,744.60 is: 870,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,603.80 : 1,470,269.70 = 579,744.60 : x
  2. Step 2: Convert to fraction form
    979,603.80/1,470,269.70 = 579,744.60/x
  3. Step 3: Cross multiply
    979,603.80x = 1,470,269.70 × 579,744.60
  4. Step 4: Simplify right side
    979,603.80x = 852,380,919,118.62
  5. Step 5: Solve for x
    x = 852,380,919,118.62/979,603.80
  6. Step 6: Final answer
    x = 870,128.23

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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.