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Finding the Fourth Proportional to 379,701.70, 569,552.55 and 313,216.90

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Solution

The fourth proportional to 379,701.70, 569,552.55 and 313,216.90 is: 469,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,701.70 : 569,552.55 = 313,216.90 : x
  2. Step 2: Convert to fraction form
    379,701.70/569,552.55 = 313,216.90/x
  3. Step 3: Cross multiply
    379,701.70x = 569,552.55 × 313,216.90
  4. Step 4: Simplify right side
    379,701.70x = 178,393,484,098.10
  5. Step 5: Solve for x
    x = 178,393,484,098.10/379,701.70
  6. Step 6: Final answer
    x = 469,825.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.