Home / 749,357.80-1,123,647.90-275,799.40

Finding the Fourth Proportional to 749,357.80, 1,123,647.90 and 275,799.40

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Solution

The fourth proportional to 749,357.80, 1,123,647.90 and 275,799.40 is: 413,556.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,357.80 : 1,123,647.90 = 275,799.40 : x
  2. Step 2: Convert to fraction form
    749,357.80/1,123,647.90 = 275,799.40/x
  3. Step 3: Cross multiply
    749,357.80x = 1,123,647.90 × 275,799.40
  4. Step 4: Simplify right side
    749,357.80x = 309,901,416,631.26
  5. Step 5: Solve for x
    x = 309,901,416,631.26/749,357.80
  6. Step 6: Final answer
    x = 413,556.00

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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.