Home / 788,683.70-1,183,025.55-490,085.30

Finding the Fourth Proportional to 788,683.70, 1,183,025.55 and 490,085.30

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Solution

The fourth proportional to 788,683.70, 1,183,025.55 and 490,085.30 is: 735,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,683.70 : 1,183,025.55 = 490,085.30 : x
  2. Step 2: Convert to fraction form
    788,683.70/1,183,025.55 = 490,085.30/x
  3. Step 3: Cross multiply
    788,683.70x = 1,183,025.55 × 490,085.30
  4. Step 4: Simplify right side
    788,683.70x = 579,783,431,579.42
  5. Step 5: Solve for x
    x = 579,783,431,579.42/788,683.70
  6. Step 6: Final answer
    x = 735,127.95

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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.