Home / 910,874.40-1,364,124.60-489,220.80

Finding the Fourth Proportional to 910,874.40, 1,364,124.60 and 489,220.80

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Solution

The fourth proportional to 910,874.40, 1,364,124.60 and 489,220.80 is: 732,656.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,874.40 : 1,364,124.60 = 489,220.80 : x
  2. Step 2: Convert to fraction form
    910,874.40/1,364,124.60 = 489,220.80/x
  3. Step 3: Cross multiply
    910,874.40x = 1,364,124.60 × 489,220.80
  4. Step 4: Simplify right side
    910,874.40x = 667,358,128,111.68
  5. Step 5: Solve for x
    x = 667,358,128,111.68/910,874.40
  6. Step 6: Final answer
    x = 732,656.59

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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.