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Finding the Fourth Proportional to 557,531.92, 769,394.96 and 302,883.32

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Solution

The fourth proportional to 557,531.92, 769,394.96 and 302,883.32 is: 417,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,531.92 : 769,394.96 = 302,883.32 : x
  2. Step 2: Convert to fraction form
    557,531.92/769,394.96 = 302,883.32/x
  3. Step 3: Cross multiply
    557,531.92x = 769,394.96 × 302,883.32
  4. Step 4: Simplify right side
    557,531.92x = 233,036,899,876.07
  5. Step 5: Solve for x
    x = 233,036,899,876.07/557,531.92
  6. Step 6: Final answer
    x = 417,979.48

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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.