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Finding the Fourth Proportional to 487,459.85, 672,682.05 and 269,676.72

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Solution

The fourth proportional to 487,459.85, 672,682.05 and 269,676.72 is: 372,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,459.85 : 672,682.05 = 269,676.72 : x
  2. Step 2: Convert to fraction form
    487,459.85/672,682.05 = 269,676.72/x
  3. Step 3: Cross multiply
    487,459.85x = 672,682.05 × 269,676.72
  4. Step 4: Simplify right side
    487,459.85x = 181,406,685,483.47
  5. Step 5: Solve for x
    x = 181,406,685,483.47/487,459.85
  6. Step 6: Final answer
    x = 372,146.93

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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.