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Finding the Fourth Proportional to 554,382.72, 765,048.32 and 299,733.92

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Solution

The fourth proportional to 554,382.72, 765,048.32 and 299,733.92 is: 413,632.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,382.72 : 765,048.32 = 299,733.92 : x
  2. Step 2: Convert to fraction form
    554,382.72/765,048.32 = 299,733.92/x
  3. Step 3: Cross multiply
    554,382.72x = 765,048.32 × 299,733.92
  4. Step 4: Simplify right side
    554,382.72x = 229,310,931,943.01
  5. Step 5: Solve for x
    x = 229,310,931,943.01/554,382.72
  6. Step 6: Final answer
    x = 413,632.90

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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.