Home / 984,901.45-1,476,327.90-415,807.60

Finding the Fourth Proportional to 984,901.45, 1,476,327.90 and 415,807.60

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Solution

The fourth proportional to 984,901.45, 1,476,327.90 and 415,807.60 is: 623,278.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,901.45 : 1,476,327.90 = 415,807.60 : x
  2. Step 2: Convert to fraction form
    984,901.45/1,476,327.90 = 415,807.60/x
  3. Step 3: Cross multiply
    984,901.45x = 1,476,327.90 × 415,807.60
  4. Step 4: Simplify right side
    984,901.45x = 613,868,360,912.04
  5. Step 5: Solve for x
    x = 613,868,360,912.04/984,901.45
  6. Step 6: Final answer
    x = 623,278.97

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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.