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Finding the Fourth Proportional to 557,517.15, 769,374.59 and 302,868.54

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Solution

The fourth proportional to 557,517.15, 769,374.59 and 302,868.54 is: 417,959.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,517.15 : 769,374.59 = 302,868.54 : x
  2. Step 2: Convert to fraction form
    557,517.15/769,374.59 = 302,868.54/x
  3. Step 3: Cross multiply
    557,517.15x = 769,374.59 × 302,868.54
  4. Step 4: Simplify right side
    557,517.15x = 233,019,357,272.06
  5. Step 5: Solve for x
    x = 233,019,357,272.06/557,517.15
  6. Step 6: Final answer
    x = 417,959.08

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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.