Home / 804,915.70-1,208,151.15-489,987.70

Finding the Fourth Proportional to 804,915.70, 1,208,151.15 and 489,987.70

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Solution

The fourth proportional to 804,915.70, 1,208,151.15 and 489,987.70 is: 735,454.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,915.70 : 1,208,151.15 = 489,987.70 : x
  2. Step 2: Convert to fraction form
    804,915.70/1,208,151.15 = 489,987.70/x
  3. Step 3: Cross multiply
    804,915.70x = 1,208,151.15 × 489,987.70
  4. Step 4: Simplify right side
    804,915.70x = 591,979,203,240.86
  5. Step 5: Solve for x
    x = 591,979,203,240.86/804,915.70
  6. Step 6: Final answer
    x = 735,454.91

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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.