Home / 1,155,315.60-1,732,051.80-489,920.40

Finding the Fourth Proportional to 1,155,315.60, 1,732,051.80 and 489,920.40

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Solution

The fourth proportional to 1,155,315.60, 1,732,051.80 and 489,920.40 is: 734,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,315.60 : 1,732,051.80 = 489,920.40 : x
  2. Step 2: Convert to fraction form
    1,155,315.60/1,732,051.80 = 489,920.40/x
  3. Step 3: Cross multiply
    1,155,315.60x = 1,732,051.80 × 489,920.40
  4. Step 4: Simplify right side
    1,155,315.60x = 848,567,510,676.72
  5. Step 5: Solve for x
    x = 848,567,510,676.72/1,155,315.60
  6. Step 6: Final answer
    x = 734,489.79

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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.