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Finding the Fourth Proportional to 674,059.67, 929,913.44 and 387,518.93

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Solution

The fourth proportional to 674,059.67, 929,913.44 and 387,518.93 is: 534,610.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,059.67 : 929,913.44 = 387,518.93 : x
  2. Step 2: Convert to fraction form
    674,059.67/929,913.44 = 387,518.93/x
  3. Step 3: Cross multiply
    674,059.67x = 929,913.44 × 387,518.93
  4. Step 4: Simplify right side
    674,059.67x = 360,359,054,674.26
  5. Step 5: Solve for x
    x = 360,359,054,674.26/674,059.67
  6. Step 6: Final answer
    x = 534,610.03

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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.