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Finding the Fourth Proportional to 557,544.51, 769,420.77 and 302,895.90

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Solution

The fourth proportional to 557,544.51, 769,420.77 and 302,895.90 is: 418,001.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,544.51 : 769,420.77 = 302,895.90 : x
  2. Step 2: Convert to fraction form
    557,544.51/769,420.77 = 302,895.90/x
  3. Step 3: Cross multiply
    557,544.51x = 769,420.77 × 302,895.90
  4. Step 4: Simplify right side
    557,544.51x = 233,054,396,607.84
  5. Step 5: Solve for x
    x = 233,054,396,607.84/557,544.51
  6. Step 6: Final answer
    x = 418,001.42

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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.