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Finding the Fourth Proportional to 557,161.32, 768,883.62 and 302,511.72

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Solution

The fourth proportional to 557,161.32, 768,883.62 and 302,511.72 is: 417,466.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,161.32 : 768,883.62 = 302,511.72 : x
  2. Step 2: Convert to fraction form
    557,161.32/768,883.62 = 302,511.72/x
  3. Step 3: Cross multiply
    557,161.32x = 768,883.62 × 302,511.72
  4. Step 4: Simplify right side
    557,161.32x = 232,596,306,366.03
  5. Step 5: Solve for x
    x = 232,596,306,366.03/557,161.32
  6. Step 6: Final answer
    x = 417,466.72

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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.