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Finding the Fourth Proportional to 462,885.20, 695,364.60 and 443,992.40

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Solution

The fourth proportional to 462,885.20, 695,364.60 and 443,992.40 is: 666,983.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,885.20 : 695,364.60 = 443,992.40 : x
  2. Step 2: Convert to fraction form
    462,885.20/695,364.60 = 443,992.40/x
  3. Step 3: Cross multiply
    462,885.20x = 695,364.60 × 443,992.40
  4. Step 4: Simplify right side
    462,885.20x = 308,736,597,629.04
  5. Step 5: Solve for x
    x = 308,736,597,629.04/462,885.20
  6. Step 6: Final answer
    x = 666,983.08

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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.