Home / 1,420,693.86-1,960,525.44-776,116.92

Finding the Fourth Proportional to 1,420,693.86, 1,960,525.44 and 776,116.92

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Solution

The fourth proportional to 1,420,693.86, 1,960,525.44 and 776,116.92 is: 1,071,023.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,693.86 : 1,960,525.44 = 776,116.92 : x
  2. Step 2: Convert to fraction form
    1,420,693.86/1,960,525.44 = 776,116.92/x
  3. Step 3: Cross multiply
    1,420,693.86x = 1,960,525.44 × 776,116.92
  4. Step 4: Simplify right side
    1,420,693.86x = 1,521,596,966,074.44
  5. Step 5: Solve for x
    x = 1,521,596,966,074.44/1,420,693.86
  6. Step 6: Final answer
    x = 1,071,023.82

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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.