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Finding the Fourth Proportional to 612,570.96, 916,890.48 and 327,549.60

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Solution

The fourth proportional to 612,570.96, 916,890.48 and 327,549.60 is: 490,273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,570.96 : 916,890.48 = 327,549.60 : x
  2. Step 2: Convert to fraction form
    612,570.96/916,890.48 = 327,549.60/x
  3. Step 3: Cross multiply
    612,570.96x = 916,890.48 × 327,549.60
  4. Step 4: Simplify right side
    612,570.96x = 300,327,109,967.81
  5. Step 5: Solve for x
    x = 300,327,109,967.81/612,570.96
  6. Step 6: Final answer
    x = 490,273.18

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1.5x scale

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.