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Finding the Fourth Proportional to 492,309.57, 679,377.74 and 277,445.33

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Solution

The fourth proportional to 492,309.57, 679,377.74 and 277,445.33 is: 382,869.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,309.57 : 679,377.74 = 277,445.33 : x
  2. Step 2: Convert to fraction form
    492,309.57/679,377.74 = 277,445.33/x
  3. Step 3: Cross multiply
    492,309.57x = 679,377.74 × 277,445.33
  4. Step 4: Simplify right side
    492,309.57x = 188,490,176,484.84
  5. Step 5: Solve for x
    x = 188,490,176,484.84/492,309.57
  6. Step 6: Final answer
    x = 382,869.21

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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.