Home / 1,155,295.60-1,732,021.80-489,900.40

Finding the Fourth Proportional to 1,155,295.60, 1,732,021.80 and 489,900.40

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Solution

The fourth proportional to 1,155,295.60, 1,732,021.80 and 489,900.40 is: 734,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,295.60 : 1,732,021.80 = 489,900.40 : x
  2. Step 2: Convert to fraction form
    1,155,295.60/1,732,021.80 = 489,900.40/x
  3. Step 3: Cross multiply
    1,155,295.60x = 1,732,021.80 × 489,900.40
  4. Step 4: Simplify right side
    1,155,295.60x = 848,518,172,628.72
  5. Step 5: Solve for x
    x = 848,518,172,628.72/1,155,295.60
  6. Step 6: Final answer
    x = 734,459.80

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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.