Home / 1,287,629.80-1,931,703.90-446,007.40

Finding the Fourth Proportional to 1,287,629.80, 1,931,703.90 and 446,007.40

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Solution

The fourth proportional to 1,287,629.80, 1,931,703.90 and 446,007.40 is: 669,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,629.80 : 1,931,703.90 = 446,007.40 : x
  2. Step 2: Convert to fraction form
    1,287,629.80/1,931,703.90 = 446,007.40/x
  3. Step 3: Cross multiply
    1,287,629.80x = 1,931,703.90 × 446,007.40
  4. Step 4: Simplify right side
    1,287,629.80x = 861,554,234,008.86
  5. Step 5: Solve for x
    x = 861,554,234,008.86/1,287,629.80
  6. Step 6: Final answer
    x = 669,100.88

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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.