Home / 804,920.20-1,208,157.90-489,992.20

Finding the Fourth Proportional to 804,920.20, 1,208,157.90 and 489,992.20

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Solution

The fourth proportional to 804,920.20, 1,208,157.90 and 489,992.20 is: 735,461.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,920.20 : 1,208,157.90 = 489,992.20 : x
  2. Step 2: Convert to fraction form
    804,920.20/1,208,157.90 = 489,992.20/x
  3. Step 3: Cross multiply
    804,920.20x = 1,208,157.90 × 489,992.20
  4. Step 4: Simplify right side
    804,920.20x = 591,987,947,368.38
  5. Step 5: Solve for x
    x = 591,987,947,368.38/804,920.20
  6. Step 6: Final answer
    x = 735,461.66

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Double scale
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1.5x scale

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.