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Finding the Fourth Proportional to 703,228.33, 970,459.76 and 380,938.42

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Solution

The fourth proportional to 703,228.33, 970,459.76 and 380,938.42 is: 525,697.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,228.33 : 970,459.76 = 380,938.42 : x
  2. Step 2: Convert to fraction form
    703,228.33/970,459.76 = 380,938.42/x
  3. Step 3: Cross multiply
    703,228.33x = 970,459.76 × 380,938.42
  4. Step 4: Simplify right side
    703,228.33x = 369,685,400,890.99
  5. Step 5: Solve for x
    x = 369,685,400,890.99/703,228.33
  6. Step 6: Final answer
    x = 525,697.54

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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.