Home / 839,678.35-1,158,712.40-477,051.88

Finding the Fourth Proportional to 839,678.35, 1,158,712.40 and 477,051.88

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Solution

The fourth proportional to 839,678.35, 1,158,712.40 and 477,051.88 is: 658,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,678.35 : 1,158,712.40 = 477,051.88 : x
  2. Step 2: Convert to fraction form
    839,678.35/1,158,712.40 = 477,051.88/x
  3. Step 3: Cross multiply
    839,678.35x = 1,158,712.40 × 477,051.88
  4. Step 4: Simplify right side
    839,678.35x = 552,765,920,620.49
  5. Step 5: Solve for x
    x = 552,765,920,620.49/839,678.35
  6. Step 6: Final answer
    x = 658,306.75

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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.