Home / 853,859.12-1,178,349.18-471,910.64

Finding the Fourth Proportional to 853,859.12, 1,178,349.18 and 471,910.64

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Solution

The fourth proportional to 853,859.12, 1,178,349.18 and 471,910.64 is: 651,249.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,859.12 : 1,178,349.18 = 471,910.64 : x
  2. Step 2: Convert to fraction form
    853,859.12/1,178,349.18 = 471,910.64/x
  3. Step 3: Cross multiply
    853,859.12x = 1,178,349.18 × 471,910.64
  4. Step 4: Simplify right side
    853,859.12x = 556,075,515,677.28
  5. Step 5: Solve for x
    x = 556,075,515,677.28/853,859.12
  6. Step 6: Final answer
    x = 651,249.72

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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.