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Finding the Fourth Proportional to 555,965.08, 767,228.70 and 301,316.20

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Solution

The fourth proportional to 555,965.08, 767,228.70 and 301,316.20 is: 415,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,965.08 : 767,228.70 = 301,316.20 : x
  2. Step 2: Convert to fraction form
    555,965.08/767,228.70 = 301,316.20/x
  3. Step 3: Cross multiply
    555,965.08x = 767,228.70 × 301,316.20
  4. Step 4: Simplify right side
    555,965.08x = 231,178,436,414.94
  5. Step 5: Solve for x
    x = 231,178,436,414.94/555,965.08
  6. Step 6: Final answer
    x = 415,814.67

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Double scale
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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.