Home / 775,870.30-1,164,340.59-270,435.43

Finding the Fourth Proportional to 775,870.30, 1,164,340.59 and 270,435.43

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Solution

The fourth proportional to 775,870.30, 1,164,340.59 and 270,435.43 is: 405,839.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,870.30 : 1,164,340.59 = 270,435.43 : x
  2. Step 2: Convert to fraction form
    775,870.30/1,164,340.59 = 270,435.43/x
  3. Step 3: Cross multiply
    775,870.30x = 1,164,340.59 × 270,435.43
  4. Step 4: Simplify right side
    775,870.30x = 314,878,948,123.10
  5. Step 5: Solve for x
    x = 314,878,948,123.10/775,870.30
  6. Step 6: Final answer
    x = 405,839.67

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Half scale
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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.