Home / 984,378.63-1,475,586.84-415,902.90

Finding the Fourth Proportional to 984,378.63, 1,475,586.84 and 415,902.90

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Solution

The fourth proportional to 984,378.63, 1,475,586.84 and 415,902.90 is: 623,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,378.63 : 1,475,586.84 = 415,902.90 : x
  2. Step 2: Convert to fraction form
    984,378.63/1,475,586.84 = 415,902.90/x
  3. Step 3: Cross multiply
    984,378.63x = 1,475,586.84 × 415,902.90
  4. Step 4: Simplify right side
    984,378.63x = 613,700,845,957.84
  5. Step 5: Solve for x
    x = 613,700,845,957.84/984,378.63
  6. Step 6: Final answer
    x = 623,439.83

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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.