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Finding the Fourth Proportional to 577,038.78, 864,784.44 and 449,109.59

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Solution

The fourth proportional to 577,038.78, 864,784.44 and 449,109.59 is: 673,062.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,038.78 : 864,784.44 = 449,109.59 : x
  2. Step 2: Convert to fraction form
    577,038.78/864,784.44 = 449,109.59/x
  3. Step 3: Cross multiply
    577,038.78x = 864,784.44 × 449,109.59
  4. Step 4: Simplify right side
    577,038.78x = 388,382,980,962.86
  5. Step 5: Solve for x
    x = 388,382,980,962.86/577,038.78
  6. Step 6: Final answer
    x = 673,062.18

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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.