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Finding the Fourth Proportional to 577,400.80, 865,640.40 and 244,703.20

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Solution

The fourth proportional to 577,400.80, 865,640.40 and 244,703.20 is: 366,859.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,400.80 : 865,640.40 = 244,703.20 : x
  2. Step 2: Convert to fraction form
    577,400.80/865,640.40 = 244,703.20/x
  3. Step 3: Cross multiply
    577,400.80x = 865,640.40 × 244,703.20
  4. Step 4: Simplify right side
    577,400.80x = 211,824,975,929.28
  5. Step 5: Solve for x
    x = 211,824,975,929.28/577,400.80
  6. Step 6: Final answer
    x = 366,859.51

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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.