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Finding the Fourth Proportional to 539,861.56, 745,009.02 and 301,397.56

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Solution

The fourth proportional to 539,861.56, 745,009.02 and 301,397.56 is: 415,928.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,861.56 : 745,009.02 = 301,397.56 : x
  2. Step 2: Convert to fraction form
    539,861.56/745,009.02 = 301,397.56/x
  3. Step 3: Cross multiply
    539,861.56x = 745,009.02 × 301,397.56
  4. Step 4: Simplify right side
    539,861.56x = 224,543,900,805.99
  5. Step 5: Solve for x
    x = 224,543,900,805.99/539,861.56
  6. Step 6: Final answer
    x = 415,928.67

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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.