Home / 555,390.28-766,442.27-300,741.46

Finding the Fourth Proportional to 555,390.28, 766,442.27 and 300,741.46

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Solution

The fourth proportional to 555,390.28, 766,442.27 and 300,741.46 is: 415,025.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,390.28 : 766,442.27 = 300,741.46 : x
  2. Step 2: Convert to fraction form
    555,390.28/766,442.27 = 300,741.46/x
  3. Step 3: Cross multiply
    555,390.28x = 766,442.27 × 300,741.46
  4. Step 4: Simplify right side
    555,390.28x = 230,500,967,285.51
  5. Step 5: Solve for x
    x = 230,500,967,285.51/555,390.28
  6. Step 6: Final answer
    x = 415,025.21

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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.