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Finding the Fourth Proportional to 452,722.40, 624,790.76 and 280,673.85

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Solution

The fourth proportional to 452,722.40, 624,790.76 and 280,673.85 is: 387,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,722.40 : 624,790.76 = 280,673.85 : x
  2. Step 2: Convert to fraction form
    452,722.40/624,790.76 = 280,673.85/x
  3. Step 3: Cross multiply
    452,722.40x = 624,790.76 × 280,673.85
  4. Step 4: Simplify right side
    452,722.40x = 175,362,425,981.60
  5. Step 5: Solve for x
    x = 175,362,425,981.60/452,722.40
  6. Step 6: Final answer
    x = 387,350.89

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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.