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Finding the Fourth Proportional to 674,236.89, 930,446.88 and 372,430.89

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Solution

The fourth proportional to 674,236.89, 930,446.88 and 372,430.89 is: 513,954.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,236.89 : 930,446.88 = 372,430.89 : x
  2. Step 2: Convert to fraction form
    674,236.89/930,446.88 = 372,430.89/x
  3. Step 3: Cross multiply
    674,236.89x = 930,446.88 × 372,430.89
  4. Step 4: Simplify right side
    674,236.89x = 346,527,159,616.12
  5. Step 5: Solve for x
    x = 346,527,159,616.12/674,236.89
  6. Step 6: Final answer
    x = 513,954.61

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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.