Home / 749,011.96-1,123,407.37-275,587.21

Finding the Fourth Proportional to 749,011.96, 1,123,407.37 and 275,587.21

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Solution

The fourth proportional to 749,011.96, 1,123,407.37 and 275,587.21 is: 413,340.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,011.96 : 1,123,407.37 = 275,587.21 : x
  2. Step 2: Convert to fraction form
    749,011.96/1,123,407.37 = 275,587.21/x
  3. Step 3: Cross multiply
    749,011.96x = 1,123,407.37 × 275,587.21
  4. Step 4: Simplify right side
    749,011.96x = 309,596,702,791.74
  5. Step 5: Solve for x
    x = 309,596,702,791.74/749,011.96
  6. Step 6: Final answer
    x = 413,340.13

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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.