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Finding the Fourth Proportional to 481,505.90, 721,567.65 and 354,152.30

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Solution

The fourth proportional to 481,505.90, 721,567.65 and 354,152.30 is: 530,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,505.90 : 721,567.65 = 354,152.30 : x
  2. Step 2: Convert to fraction form
    481,505.90/721,567.65 = 354,152.30/x
  3. Step 3: Cross multiply
    481,505.90x = 721,567.65 × 354,152.30
  4. Step 4: Simplify right side
    481,505.90x = 255,544,842,853.10
  5. Step 5: Solve for x
    x = 255,544,842,853.10/481,505.90
  6. Step 6: Final answer
    x = 530,720.07

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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.