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Finding the Fourth Proportional to 984,892.80, 1,476,302.40 and 385,622.40

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Solution

The fourth proportional to 984,892.80, 1,476,302.40 and 385,622.40 is: 578,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,892.80 : 1,476,302.40 = 385,622.40 : x
  2. Step 2: Convert to fraction form
    984,892.80/1,476,302.40 = 385,622.40/x
  3. Step 3: Cross multiply
    984,892.80x = 1,476,302.40 × 385,622.40
  4. Step 4: Simplify right side
    984,892.80x = 569,295,274,613.76
  5. Step 5: Solve for x
    x = 569,295,274,613.76/984,892.80
  6. Step 6: Final answer
    x = 578,027.65

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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.