Home / 1,155,313.60-1,732,048.80-489,918.40

Finding the Fourth Proportional to 1,155,313.60, 1,732,048.80 and 489,918.40

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Solution

The fourth proportional to 1,155,313.60, 1,732,048.80 and 489,918.40 is: 734,486.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,313.60 : 1,732,048.80 = 489,918.40 : x
  2. Step 2: Convert to fraction form
    1,155,313.60/1,732,048.80 = 489,918.40/x
  3. Step 3: Cross multiply
    1,155,313.60x = 1,732,048.80 × 489,918.40
  4. Step 4: Simplify right side
    1,155,313.60x = 848,562,576,817.92
  5. Step 5: Solve for x
    x = 848,562,576,817.92/1,155,313.60
  6. Step 6: Final answer
    x = 734,486.79

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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.