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Finding the Fourth Proportional to 555,482.31, 766,564.88 and 300,834.51

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Solution

The fourth proportional to 555,482.31, 766,564.88 and 300,834.51 is: 415,151.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,482.31 : 766,564.88 = 300,834.51 : x
  2. Step 2: Convert to fraction form
    555,482.31/766,564.88 = 300,834.51/x
  3. Step 3: Cross multiply
    555,482.31x = 766,564.88 × 300,834.51
  4. Step 4: Simplify right side
    555,482.31x = 230,609,168,553.84
  5. Step 5: Solve for x
    x = 230,609,168,553.84/555,482.31
  6. Step 6: Final answer
    x = 415,151.24

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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.