Home / 492,742.98-679,985.49-266,388.48

Finding the Fourth Proportional to 492,742.98, 679,985.49 and 266,388.48

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Solution

The fourth proportional to 492,742.98, 679,985.49 and 266,388.48 is: 367,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,742.98 : 679,985.49 = 266,388.48 : x
  2. Step 2: Convert to fraction form
    492,742.98/679,985.49 = 266,388.48/x
  3. Step 3: Cross multiply
    492,742.98x = 679,985.49 × 266,388.48
  4. Step 4: Simplify right side
    492,742.98x = 181,140,301,103.16
  5. Step 5: Solve for x
    x = 181,140,301,103.16/492,742.98
  6. Step 6: Final answer
    x = 367,616.20

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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.