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Finding the Fourth Proportional to 550,583.68, 759,001.12 and 389,153.92

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Solution

The fourth proportional to 550,583.68, 759,001.12 and 389,153.92 is: 536,463.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,583.68 : 759,001.12 = 389,153.92 : x
  2. Step 2: Convert to fraction form
    550,583.68/759,001.12 = 389,153.92/x
  3. Step 3: Cross multiply
    550,583.68x = 759,001.12 × 389,153.92
  4. Step 4: Simplify right side
    550,583.68x = 295,368,261,132.39
  5. Step 5: Solve for x
    x = 295,368,261,132.39/550,583.68
  6. Step 6: Final answer
    x = 536,463.89

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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.