Home / 788,763.90-1,183,145.85-256,302.30

Finding the Fourth Proportional to 788,763.90, 1,183,145.85 and 256,302.30

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Solution

The fourth proportional to 788,763.90, 1,183,145.85 and 256,302.30 is: 384,453.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,763.90 : 1,183,145.85 = 256,302.30 : x
  2. Step 2: Convert to fraction form
    788,763.90/1,183,145.85 = 256,302.30/x
  3. Step 3: Cross multiply
    788,763.90x = 1,183,145.85 × 256,302.30
  4. Step 4: Simplify right side
    788,763.90x = 303,243,002,590.46
  5. Step 5: Solve for x
    x = 303,243,002,590.46/788,763.90
  6. Step 6: Final answer
    x = 384,453.45

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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.