Home / 853,969.87-1,178,539.55-471,988.45

Finding the Fourth Proportional to 853,969.87, 1,178,539.55 and 471,988.45

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Solution

The fourth proportional to 853,969.87, 1,178,539.55 and 471,988.45 is: 651,377.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,969.87 : 1,178,539.55 = 471,988.45 : x
  2. Step 2: Convert to fraction form
    853,969.87/1,178,539.55 = 471,988.45/x
  3. Step 3: Cross multiply
    853,969.87x = 1,178,539.55 × 471,988.45
  4. Step 4: Simplify right side
    853,969.87x = 556,257,055,468.20
  5. Step 5: Solve for x
    x = 556,257,055,468.20/853,969.87
  6. Step 6: Final answer
    x = 651,377.85

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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.