Home / 1,486,805.20-2,230,207.80-489,403.60

Finding the Fourth Proportional to 1,486,805.20, 2,230,207.80 and 489,403.60

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Solution

The fourth proportional to 1,486,805.20, 2,230,207.80 and 489,403.60 is: 734,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,805.20 : 2,230,207.80 = 489,403.60 : x
  2. Step 2: Convert to fraction form
    1,486,805.20/2,230,207.80 = 489,403.60/x
  3. Step 3: Cross multiply
    1,486,805.20x = 2,230,207.80 × 489,403.60
  4. Step 4: Simplify right side
    1,486,805.20x = 1,091,471,726,068.08
  5. Step 5: Solve for x
    x = 1,091,471,726,068.08/1,486,805.20
  6. Step 6: Final answer
    x = 734,105.40

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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.