Home / 1,199,455.40-1,798,308.30-489,117.80

Finding the Fourth Proportional to 1,199,455.40, 1,798,308.30 and 489,117.80

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Solution

The fourth proportional to 1,199,455.40, 1,798,308.30 and 489,117.80 is: 733,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,455.40 : 1,798,308.30 = 489,117.80 : x
  2. Step 2: Convert to fraction form
    1,199,455.40/1,798,308.30 = 489,117.80/x
  3. Step 3: Cross multiply
    1,199,455.40x = 1,798,308.30 × 489,117.80
  4. Step 4: Simplify right side
    1,199,455.40x = 879,584,599,417.74
  5. Step 5: Solve for x
    x = 879,584,599,417.74/1,199,455.40
  6. Step 6: Final answer
    x = 733,319.97

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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.