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Finding the Fourth Proportional to 546,133.76, 753,668 and 304,431.68

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Solution

The fourth proportional to 546,133.76, 753,668 and 304,431.68 is: 420,117.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,133.76 : 753,668 = 304,431.68 : x
  2. Step 2: Convert to fraction form
    546,133.76/753,668 = 304,431.68/x
  3. Step 3: Cross multiply
    546,133.76x = 753,668 × 304,431.68
  4. Step 4: Simplify right side
    546,133.76x = 229,440,415,402.24
  5. Step 5: Solve for x
    x = 229,440,415,402.24/546,133.76
  6. Step 6: Final answer
    x = 420,117.62

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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.