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Finding the Fourth Proportional to 487,805.64, 672,259.92 and 351,604.14

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Solution

The fourth proportional to 487,805.64, 672,259.92 and 351,604.14 is: 484,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,805.64 : 672,259.92 = 351,604.14 : x
  2. Step 2: Convert to fraction form
    487,805.64/672,259.92 = 351,604.14/x
  3. Step 3: Cross multiply
    487,805.64x = 672,259.92 × 351,604.14
  4. Step 4: Simplify right side
    487,805.64x = 236,369,371,028.07
  5. Step 5: Solve for x
    x = 236,369,371,028.07/487,805.64
  6. Step 6: Final answer
    x = 484,556.45

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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.