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Finding the Fourth Proportional to 557,553.51, 769,433.18 and 302,904.90

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Solution

The fourth proportional to 557,553.51, 769,433.18 and 302,904.90 is: 418,013.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,553.51 : 769,433.18 = 302,904.90 : x
  2. Step 2: Convert to fraction form
    557,553.51/769,433.18 = 302,904.90/x
  3. Step 3: Cross multiply
    557,553.51x = 769,433.18 × 302,904.90
  4. Step 4: Simplify right side
    557,553.51x = 233,065,078,930.06
  5. Step 5: Solve for x
    x = 233,065,078,930.06/557,553.51
  6. Step 6: Final answer
    x = 418,013.83

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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.