Home / 1,313,187.76-1,812,226.83-740,227.78

Finding the Fourth Proportional to 1,313,187.76, 1,812,226.83 and 740,227.78

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Solution

The fourth proportional to 1,313,187.76, 1,812,226.83 and 740,227.78 is: 1,021,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,187.76 : 1,812,226.83 = 740,227.78 : x
  2. Step 2: Convert to fraction form
    1,313,187.76/1,812,226.83 = 740,227.78/x
  3. Step 3: Cross multiply
    1,313,187.76x = 1,812,226.83 × 740,227.78
  4. Step 4: Simplify right side
    1,313,187.76x = 1,341,460,636,686.77
  5. Step 5: Solve for x
    x = 1,341,460,636,686.77/1,313,187.76
  6. Step 6: Final answer
    x = 1,021,529.96

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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.