Home / 1,287,883.80-1,931,825.70-446,435.64

Finding the Fourth Proportional to 1,287,883.80, 1,931,825.70 and 446,435.64

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Solution

The fourth proportional to 1,287,883.80, 1,931,825.70 and 446,435.64 is: 669,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,883.80 : 1,931,825.70 = 446,435.64 : x
  2. Step 2: Convert to fraction form
    1,287,883.80/1,931,825.70 = 446,435.64/x
  3. Step 3: Cross multiply
    1,287,883.80x = 1,931,825.70 × 446,435.64
  4. Step 4: Simplify right side
    1,287,883.80x = 862,435,842,747.95
  5. Step 5: Solve for x
    x = 862,435,842,747.95/1,287,883.80
  6. Step 6: Final answer
    x = 669,653.46

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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.