Home / 788,519.70-1,182,779.43-189,480.87

Finding the Fourth Proportional to 788,519.70, 1,182,779.43 and 189,480.87

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Solution

The fourth proportional to 788,519.70, 1,182,779.43 and 189,480.87 is: 284,221.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,519.70 : 1,182,779.43 = 189,480.87 : x
  2. Step 2: Convert to fraction form
    788,519.70/1,182,779.43 = 189,480.87/x
  3. Step 3: Cross multiply
    788,519.70x = 1,182,779.43 × 189,480.87
  4. Step 4: Simplify right side
    788,519.70x = 224,114,075,414.50
  5. Step 5: Solve for x
    x = 224,114,075,414.50/788,519.70
  6. Step 6: Final answer
    x = 284,221.28

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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.