Home / 1,287,847.71-1,931,771.70-446,399.46

Finding the Fourth Proportional to 1,287,847.71, 1,931,771.70 and 446,399.46

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Solution

The fourth proportional to 1,287,847.71, 1,931,771.70 and 446,399.46 is: 669,599.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,847.71 : 1,931,771.70 = 446,399.46 : x
  2. Step 2: Convert to fraction form
    1,287,847.71/1,931,771.70 = 446,399.46/x
  3. Step 3: Cross multiply
    1,287,847.71x = 1,931,771.70 × 446,399.46
  4. Step 4: Simplify right side
    1,287,847.71x = 862,341,843,723.28
  5. Step 5: Solve for x
    x = 862,341,843,723.28/1,287,847.71
  6. Step 6: Final answer
    x = 669,599.24

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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.