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Finding the Fourth Proportional to 555,666.72, 766,820.44 and 301,018.92

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Solution

The fourth proportional to 555,666.72, 766,820.44 and 301,018.92 is: 415,406.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,666.72 : 766,820.44 = 301,018.92 : x
  2. Step 2: Convert to fraction form
    555,666.72/766,820.44 = 301,018.92/x
  3. Step 3: Cross multiply
    555,666.72x = 766,820.44 × 301,018.92
  4. Step 4: Simplify right side
    555,666.72x = 230,827,460,682.73
  5. Step 5: Solve for x
    x = 230,827,460,682.73/555,666.72
  6. Step 6: Final answer
    x = 415,406.31

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1.5x scale

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.