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Finding the Fourth Proportional to 458,555.04, 688,299.12 and 308,322.72

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Solution

The fourth proportional to 458,555.04, 688,299.12 and 308,322.72 is: 462,797.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,555.04 : 688,299.12 = 308,322.72 : x
  2. Step 2: Convert to fraction form
    458,555.04/688,299.12 = 308,322.72/x
  3. Step 3: Cross multiply
    458,555.04x = 688,299.12 × 308,322.72
  4. Step 4: Simplify right side
    458,555.04x = 212,218,256,852.01
  5. Step 5: Solve for x
    x = 212,218,256,852.01/458,555.04
  6. Step 6: Final answer
    x = 462,797.79

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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.