Home / 839,865.80-1,158,964.86-477,239.33

Finding the Fourth Proportional to 839,865.80, 1,158,964.86 and 477,239.33

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Solution

The fourth proportional to 839,865.80, 1,158,964.86 and 477,239.33 is: 658,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,865.80 : 1,158,964.86 = 477,239.33 : x
  2. Step 2: Convert to fraction form
    839,865.80/1,158,964.86 = 477,239.33/x
  3. Step 3: Cross multiply
    839,865.80x = 1,158,964.86 × 477,239.33
  4. Step 4: Simplify right side
    839,865.80x = 553,103,613,279.94
  5. Step 5: Solve for x
    x = 553,103,613,279.94/839,865.80
  6. Step 6: Final answer
    x = 658,561.90

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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.