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Finding the Fourth Proportional to 550,022.40, 825,811.20 and 340,070.40

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Solution

The fourth proportional to 550,022.40, 825,811.20 and 340,070.40 is: 510,586.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,022.40 : 825,811.20 = 340,070.40 : x
  2. Step 2: Convert to fraction form
    550,022.40/825,811.20 = 340,070.40/x
  3. Step 3: Cross multiply
    550,022.40x = 825,811.20 × 340,070.40
  4. Step 4: Simplify right side
    550,022.40x = 280,833,945,108.48
  5. Step 5: Solve for x
    x = 280,833,945,108.48/550,022.40
  6. Step 6: Final answer
    x = 510,586.38

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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.