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Finding the Fourth Proportional to 561,015.45, 842,051.70 and 294,966.90

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Solution

The fourth proportional to 561,015.45, 842,051.70 and 294,966.90 is: 442,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,015.45 : 842,051.70 = 294,966.90 : x
  2. Step 2: Convert to fraction form
    561,015.45/842,051.70 = 294,966.90/x
  3. Step 3: Cross multiply
    561,015.45x = 842,051.70 × 294,966.90
  4. Step 4: Simplify right side
    561,015.45x = 248,377,379,588.73
  5. Step 5: Solve for x
    x = 248,377,379,588.73/561,015.45
  6. Step 6: Final answer
    x = 442,728.23

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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.