Home / 649,481.84-896,256.76-355,126.18

Finding the Fourth Proportional to 649,481.84, 896,256.76 and 355,126.18

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Solution

The fourth proportional to 649,481.84, 896,256.76 and 355,126.18 is: 490,058.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,481.84 : 896,256.76 = 355,126.18 : x
  2. Step 2: Convert to fraction form
    649,481.84/896,256.76 = 355,126.18/x
  3. Step 3: Cross multiply
    649,481.84x = 896,256.76 × 355,126.18
  4. Step 4: Simplify right side
    649,481.84x = 318,284,239,477.98
  5. Step 5: Solve for x
    x = 318,284,239,477.98/649,481.84
  6. Step 6: Final answer
    x = 490,058.72

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.