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Finding the Fourth Proportional to 557,041.12, 768,717.76 and 302,392.48

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Solution

The fourth proportional to 557,041.12, 768,717.76 and 302,392.48 is: 417,302.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,041.12 : 768,717.76 = 302,392.48 : x
  2. Step 2: Convert to fraction form
    557,041.12/768,717.76 = 302,392.48/x
  3. Step 3: Cross multiply
    557,041.12x = 768,717.76 × 302,392.48
  4. Step 4: Simplify right side
    557,041.12x = 232,454,469,866.45
  5. Step 5: Solve for x
    x = 232,454,469,866.45/557,041.12
  6. Step 6: Final answer
    x = 417,302.17

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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.