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Finding the Fourth Proportional to 707,048.09, 975,746.72 and 384,778.61

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Solution

The fourth proportional to 707,048.09, 975,746.72 and 384,778.61 is: 531,005.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,048.09 : 975,746.72 = 384,778.61 : x
  2. Step 2: Convert to fraction form
    707,048.09/975,746.72 = 384,778.61/x
  3. Step 3: Cross multiply
    707,048.09x = 975,746.72 × 384,778.61
  4. Step 4: Simplify right side
    707,048.09x = 375,446,470,034.97
  5. Step 5: Solve for x
    x = 375,446,470,034.97/707,048.09
  6. Step 6: Final answer
    x = 531,005.56

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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.