Home / 969,958.77-1,338,307.02-638,780.52

Finding the Fourth Proportional to 969,958.77, 1,338,307.02 and 638,780.52

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Solution

The fourth proportional to 969,958.77, 1,338,307.02 and 638,780.52 is: 881,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,958.77 : 1,338,307.02 = 638,780.52 : x
  2. Step 2: Convert to fraction form
    969,958.77/1,338,307.02 = 638,780.52/x
  3. Step 3: Cross multiply
    969,958.77x = 1,338,307.02 × 638,780.52
  4. Step 4: Simplify right side
    969,958.77x = 854,884,447,463.72
  5. Step 5: Solve for x
    x = 854,884,447,463.72/969,958.77
  6. Step 6: Final answer
    x = 881,361.64

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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.