Home / 476,427.48-657,421.02-285,435.96

Finding the Fourth Proportional to 476,427.48, 657,421.02 and 285,435.96

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Solution

The fourth proportional to 476,427.48, 657,421.02 and 285,435.96 is: 393,872.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,427.48 : 657,421.02 = 285,435.96 : x
  2. Step 2: Convert to fraction form
    476,427.48/657,421.02 = 285,435.96/x
  3. Step 3: Cross multiply
    476,427.48x = 657,421.02 × 285,435.96
  4. Step 4: Simplify right side
    476,427.48x = 187,651,599,967.88
  5. Step 5: Solve for x
    x = 187,651,599,967.88/476,427.48
  6. Step 6: Final answer
    x = 393,872.33

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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.