Home / 790,340.40-1,182,011.40-664,369.20

Finding the Fourth Proportional to 790,340.40, 1,182,011.40 and 664,369.20

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Solution

The fourth proportional to 790,340.40, 1,182,011.40 and 664,369.20 is: 993,612.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,340.40 : 1,182,011.40 = 664,369.20 : x
  2. Step 2: Convert to fraction form
    790,340.40/1,182,011.40 = 664,369.20/x
  3. Step 3: Cross multiply
    790,340.40x = 1,182,011.40 × 664,369.20
  4. Step 4: Simplify right side
    790,340.40x = 785,291,968,208.88
  5. Step 5: Solve for x
    x = 785,291,968,208.88/790,340.40
  6. Step 6: Final answer
    x = 993,612.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.