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Finding the Fourth Proportional to 492,775.85, 680,031.71 and 266,421.35

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Solution

The fourth proportional to 492,775.85, 680,031.71 and 266,421.35 is: 367,662.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,775.85 : 680,031.71 = 266,421.35 : x
  2. Step 2: Convert to fraction form
    492,775.85/680,031.71 = 266,421.35/x
  3. Step 3: Cross multiply
    492,775.85x = 680,031.71 × 266,421.35
  4. Step 4: Simplify right side
    492,775.85x = 181,174,961,488.74
  5. Step 5: Solve for x
    x = 181,174,961,488.74/492,775.85
  6. Step 6: Final answer
    x = 367,662.02

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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.