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Finding the Fourth Proportional to 492,445.82, 679,585.63 and 277,585.83

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Solution

The fourth proportional to 492,445.82, 679,585.63 and 277,585.83 is: 383,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,445.82 : 679,585.63 = 277,585.83 : x
  2. Step 2: Convert to fraction form
    492,445.82/679,585.63 = 277,585.83/x
  3. Step 3: Cross multiply
    492,445.82x = 679,585.63 × 277,585.83
  4. Step 4: Simplify right side
    492,445.82x = 188,643,337,917.21
  5. Step 5: Solve for x
    x = 188,643,337,917.21/492,445.82
  6. Step 6: Final answer
    x = 383,074.30

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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.