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Finding the Fourth Proportional to 608,534.80, 912,005.40 and 327,446.80

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Solution

The fourth proportional to 608,534.80, 912,005.40 and 327,446.80 is: 490,741.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,534.80 : 912,005.40 = 327,446.80 : x
  2. Step 2: Convert to fraction form
    608,534.80/912,005.40 = 327,446.80/x
  3. Step 3: Cross multiply
    608,534.80x = 912,005.40 × 327,446.80
  4. Step 4: Simplify right side
    608,534.80x = 298,633,249,812.72
  5. Step 5: Solve for x
    x = 298,633,249,812.72/608,534.80
  6. Step 6: Final answer
    x = 490,741.45

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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.