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Finding the Fourth Proportional to 557,634.16, 769,524.06 and 302,987.17

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Solution

The fourth proportional to 557,634.16, 769,524.06 and 302,987.17 is: 418,116.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,634.16 : 769,524.06 = 302,987.17 : x
  2. Step 2: Convert to fraction form
    557,634.16/769,524.06 = 302,987.17/x
  3. Step 3: Cross multiply
    557,634.16x = 769,524.06 × 302,987.17
  4. Step 4: Simplify right side
    557,634.16x = 233,155,917,186.31
  5. Step 5: Solve for x
    x = 233,155,917,186.31/557,634.16
  6. Step 6: Final answer
    x = 418,116.27

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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.