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Finding the Fourth Proportional to 614,119.92, 920,784.24 and 259,038.96

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Solution

The fourth proportional to 614,119.92, 920,784.24 and 259,038.96 is: 388,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,119.92 : 920,784.24 = 259,038.96 : x
  2. Step 2: Convert to fraction form
    614,119.92/920,784.24 = 259,038.96/x
  3. Step 3: Cross multiply
    614,119.92x = 920,784.24 × 259,038.96
  4. Step 4: Simplify right side
    614,119.92x = 238,518,991,913.99
  5. Step 5: Solve for x
    x = 238,518,991,913.99/614,119.92
  6. Step 6: Final answer
    x = 388,391.56

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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.