Home / 1,287,830.08-1,931,307.68-446,185.36

Finding the Fourth Proportional to 1,287,830.08, 1,931,307.68 and 446,185.36

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Solution

The fourth proportional to 1,287,830.08, 1,931,307.68 and 446,185.36 is: 669,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,830.08 : 1,931,307.68 = 446,185.36 : x
  2. Step 2: Convert to fraction form
    1,287,830.08/1,931,307.68 = 446,185.36/x
  3. Step 3: Cross multiply
    1,287,830.08x = 1,931,307.68 × 446,185.36
  4. Step 4: Simplify right side
    1,287,830.08x = 861,721,212,471.57
  5. Step 5: Solve for x
    x = 861,721,212,471.57/1,287,830.08
  6. Step 6: Final answer
    x = 669,126.48

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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.