Home / 736,719.40-1,105,079.10-263,420.20

Finding the Fourth Proportional to 736,719.40, 1,105,079.10 and 263,420.20

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Solution

The fourth proportional to 736,719.40, 1,105,079.10 and 263,420.20 is: 395,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,719.40 : 1,105,079.10 = 263,420.20 : x
  2. Step 2: Convert to fraction form
    736,719.40/1,105,079.10 = 263,420.20/x
  3. Step 3: Cross multiply
    736,719.40x = 1,105,079.10 × 263,420.20
  4. Step 4: Simplify right side
    736,719.40x = 291,100,157,537.82
  5. Step 5: Solve for x
    x = 291,100,157,537.82/736,719.40
  6. Step 6: Final answer
    x = 395,130.30

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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.