Home / 1,438,642.94-1,985,030.88-826,677.47

Finding the Fourth Proportional to 1,438,642.94, 1,985,030.88 and 826,677.47

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Solution

The fourth proportional to 1,438,642.94, 1,985,030.88 and 826,677.47 is: 1,140,644.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,642.94 : 1,985,030.88 = 826,677.47 : x
  2. Step 2: Convert to fraction form
    1,438,642.94/1,985,030.88 = 826,677.47/x
  3. Step 3: Cross multiply
    1,438,642.94x = 1,985,030.88 × 826,677.47
  4. Step 4: Simplify right side
    1,438,642.94x = 1,640,980,295,825.12
  5. Step 5: Solve for x
    x = 1,640,980,295,825.12/1,438,642.94
  6. Step 6: Final answer
    x = 1,140,644.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.