Home / 788,844.60-1,183,266.90-290,143.80

Finding the Fourth Proportional to 788,844.60, 1,183,266.90 and 290,143.80

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Solution

The fourth proportional to 788,844.60, 1,183,266.90 and 290,143.80 is: 435,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,844.60 : 1,183,266.90 = 290,143.80 : x
  2. Step 2: Convert to fraction form
    788,844.60/1,183,266.90 = 290,143.80/x
  3. Step 3: Cross multiply
    788,844.60x = 1,183,266.90 × 290,143.80
  4. Step 4: Simplify right side
    788,844.60x = 343,317,554,780.22
  5. Step 5: Solve for x
    x = 343,317,554,780.22/788,844.60
  6. Step 6: Final answer
    x = 435,215.70

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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.