Home / 783,976.80-1,176,656.40-672,002.40

Finding the Fourth Proportional to 783,976.80, 1,176,656.40 and 672,002.40

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Solution

The fourth proportional to 783,976.80, 1,176,656.40 and 672,002.40 is: 1,008,596.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,976.80 : 1,176,656.40 = 672,002.40 : x
  2. Step 2: Convert to fraction form
    783,976.80/1,176,656.40 = 672,002.40/x
  3. Step 3: Cross multiply
    783,976.80x = 1,176,656.40 × 672,002.40
  4. Step 4: Simplify right side
    783,976.80x = 790,715,924,775.36
  5. Step 5: Solve for x
    x = 790,715,924,775.36/783,976.80
  6. Step 6: Final answer
    x = 1,008,596.08

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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.