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Finding the Fourth Proportional to 554,552.79, 765,285.15 and 299,903.98

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Solution

The fourth proportional to 554,552.79, 765,285.15 and 299,903.98 is: 413,868.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,552.79 : 765,285.15 = 299,903.98 : x
  2. Step 2: Convert to fraction form
    554,552.79/765,285.15 = 299,903.98/x
  3. Step 3: Cross multiply
    554,552.79x = 765,285.15 × 299,903.98
  4. Step 4: Simplify right side
    554,552.79x = 229,512,058,493.47
  5. Step 5: Solve for x
    x = 229,512,058,493.47/554,552.79
  6. Step 6: Final answer
    x = 413,868.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.