Home / 772,786.10-1,159,179.15-489,350.90

Finding the Fourth Proportional to 772,786.10, 1,159,179.15 and 489,350.90

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Solution

The fourth proportional to 772,786.10, 1,159,179.15 and 489,350.90 is: 734,026.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,786.10 : 1,159,179.15 = 489,350.90 : x
  2. Step 2: Convert to fraction form
    772,786.10/1,159,179.15 = 489,350.90/x
  3. Step 3: Cross multiply
    772,786.10x = 1,159,179.15 × 489,350.90
  4. Step 4: Simplify right side
    772,786.10x = 567,245,360,313.74
  5. Step 5: Solve for x
    x = 567,245,360,313.74/772,786.10
  6. Step 6: Final answer
    x = 734,026.35

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Double scale
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Similar ratio
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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.