Home / 1,320,314.68-1,980,471.93-720,948.82

Finding the Fourth Proportional to 1,320,314.68, 1,980,471.93 and 720,948.82

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Solution

The fourth proportional to 1,320,314.68, 1,980,471.93 and 720,948.82 is: 1,081,423.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,314.68 : 1,980,471.93 = 720,948.82 : x
  2. Step 2: Convert to fraction form
    1,320,314.68/1,980,471.93 = 720,948.82/x
  3. Step 3: Cross multiply
    1,320,314.68x = 1,980,471.93 × 720,948.82
  4. Step 4: Simplify right side
    1,320,314.68x = 1,427,818,900,976.62
  5. Step 5: Solve for x
    x = 1,427,818,900,976.62/1,320,314.68
  6. Step 6: Final answer
    x = 1,081,423.18

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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.