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Finding the Fourth Proportional to 497,303.60, 744,205.80 and 455,313.20

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Solution

The fourth proportional to 497,303.60, 744,205.80 and 455,313.20 is: 681,367.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,303.60 : 744,205.80 = 455,313.20 : x
  2. Step 2: Convert to fraction form
    497,303.60/744,205.80 = 455,313.20/x
  3. Step 3: Cross multiply
    497,303.60x = 744,205.80 × 455,313.20
  4. Step 4: Simplify right side
    497,303.60x = 338,846,724,256.56
  5. Step 5: Solve for x
    x = 338,846,724,256.56/497,303.60
  6. Step 6: Final answer
    x = 681,367.93

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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.