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Finding the Fourth Proportional to 551,609.84, 761,129.52 and 325,300.16

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Solution

The fourth proportional to 551,609.84, 761,129.52 and 325,300.16 is: 448,859.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,609.84 : 761,129.52 = 325,300.16 : x
  2. Step 2: Convert to fraction form
    551,609.84/761,129.52 = 325,300.16/x
  3. Step 3: Cross multiply
    551,609.84x = 761,129.52 × 325,300.16
  4. Step 4: Simplify right side
    551,609.84x = 247,595,554,636.72
  5. Step 5: Solve for x
    x = 247,595,554,636.72/551,609.84
  6. Step 6: Final answer
    x = 448,859.93

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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.