Home / 812,103.18-1,119,957.66-697,342.74

Finding the Fourth Proportional to 812,103.18, 1,119,957.66 and 697,342.74

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Solution

The fourth proportional to 812,103.18, 1,119,957.66 and 697,342.74 is: 961,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,103.18 : 1,119,957.66 = 697,342.74 : x
  2. Step 2: Convert to fraction form
    812,103.18/1,119,957.66 = 697,342.74/x
  3. Step 3: Cross multiply
    812,103.18x = 1,119,957.66 × 697,342.74
  4. Step 4: Simplify right side
    812,103.18x = 780,994,343,308.39
  5. Step 5: Solve for x
    x = 780,994,343,308.39/812,103.18
  6. Step 6: Final answer
    x = 961,693.49

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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.