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Finding the Fourth Proportional to 497,257.20, 745,885.80 and 308,300.40

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Solution

The fourth proportional to 497,257.20, 745,885.80 and 308,300.40 is: 462,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,257.20 : 745,885.80 = 308,300.40 : x
  2. Step 2: Convert to fraction form
    497,257.20/745,885.80 = 308,300.40/x
  3. Step 3: Cross multiply
    497,257.20x = 745,885.80 × 308,300.40
  4. Step 4: Simplify right side
    497,257.20x = 229,956,890,494.32
  5. Step 5: Solve for x
    x = 229,956,890,494.32/497,257.20
  6. Step 6: Final answer
    x = 462,450.60

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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.