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Finding the Fourth Proportional to 614,499.60, 921,749.40 and 401,923.20

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Solution

The fourth proportional to 614,499.60, 921,749.40 and 401,923.20 is: 602,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,499.60 : 921,749.40 = 401,923.20 : x
  2. Step 2: Convert to fraction form
    614,499.60/921,749.40 = 401,923.20/x
  3. Step 3: Cross multiply
    614,499.60x = 921,749.40 × 401,923.20
  4. Step 4: Simplify right side
    614,499.60x = 370,472,468,446.08
  5. Step 5: Solve for x
    x = 370,472,468,446.08/614,499.60
  6. Step 6: Final answer
    x = 602,884.80

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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.