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Finding the Fourth Proportional to 707,292.54, 976,062.69 and 385,001.64

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Solution

The fourth proportional to 707,292.54, 976,062.69 and 385,001.64 is: 531,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,292.54 : 976,062.69 = 385,001.64 : x
  2. Step 2: Convert to fraction form
    707,292.54/976,062.69 = 385,001.64/x
  3. Step 3: Cross multiply
    707,292.54x = 976,062.69 × 385,001.64
  4. Step 4: Simplify right side
    707,292.54x = 375,785,736,392.81
  5. Step 5: Solve for x
    x = 375,785,736,392.81/707,292.54
  6. Step 6: Final answer
    x = 531,301.71

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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.