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Finding the Fourth Proportional to 577,038.48, 864,783.94 and 449,109.28

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Solution

The fourth proportional to 577,038.48, 864,783.94 and 449,109.28 is: 673,061.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,038.48 : 864,783.94 = 449,109.28 : x
  2. Step 2: Convert to fraction form
    577,038.48/864,783.94 = 449,109.28/x
  3. Step 3: Cross multiply
    577,038.48x = 864,783.94 × 449,109.28
  4. Step 4: Simplify right side
    577,038.48x = 388,382,492,648.96
  5. Step 5: Solve for x
    x = 388,382,492,648.96/577,038.48
  6. Step 6: Final answer
    x = 673,061.69

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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.