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Finding the Fourth Proportional to 494,744.40, 742,116.60 and 442,256.40

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Solution

The fourth proportional to 494,744.40, 742,116.60 and 442,256.40 is: 663,384.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,744.40 : 742,116.60 = 442,256.40 : x
  2. Step 2: Convert to fraction form
    494,744.40/742,116.60 = 442,256.40/x
  3. Step 3: Cross multiply
    494,744.40x = 742,116.60 × 442,256.40
  4. Step 4: Simplify right side
    494,744.40x = 328,205,815,896.24
  5. Step 5: Solve for x
    x = 328,205,815,896.24/494,744.40
  6. Step 6: Final answer
    x = 663,384.60

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Similar ratio
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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.