Home / 674,428.60-1,011,642.89-374,765.86

Finding the Fourth Proportional to 674,428.60, 1,011,642.89 and 374,765.86

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Solution

The fourth proportional to 674,428.60, 1,011,642.89 and 374,765.86 is: 562,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,428.60 : 1,011,642.89 = 374,765.86 : x
  2. Step 2: Convert to fraction form
    674,428.60/1,011,642.89 = 374,765.86/x
  3. Step 3: Cross multiply
    674,428.60x = 1,011,642.89 × 374,765.86
  4. Step 4: Simplify right side
    674,428.60x = 379,129,210,751.69
  5. Step 5: Solve for x
    x = 379,129,210,751.69/674,428.60
  6. Step 6: Final answer
    x = 562,148.78

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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.