Home / 1,455,944.80-2,183,139.60-509,346.40

Finding the Fourth Proportional to 1,455,944.80, 2,183,139.60 and 509,346.40

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Solution

The fourth proportional to 1,455,944.80, 2,183,139.60 and 509,346.40 is: 763,747.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,944.80 : 2,183,139.60 = 509,346.40 : x
  2. Step 2: Convert to fraction form
    1,455,944.80/2,183,139.60 = 509,346.40/x
  3. Step 3: Cross multiply
    1,455,944.80x = 2,183,139.60 × 509,346.40
  4. Step 4: Simplify right side
    1,455,944.80x = 1,111,974,295,957.44
  5. Step 5: Solve for x
    x = 1,111,974,295,957.44/1,455,944.80
  6. Step 6: Final answer
    x = 763,747.57

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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.