Home / 979,639.94-1,470,020.56-380,523.58

Finding the Fourth Proportional to 979,639.94, 1,470,020.56 and 380,523.58

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Solution

The fourth proportional to 979,639.94, 1,470,020.56 and 380,523.58 is: 571,003.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,639.94 : 1,470,020.56 = 380,523.58 : x
  2. Step 2: Convert to fraction form
    979,639.94/1,470,020.56 = 380,523.58/x
  3. Step 3: Cross multiply
    979,639.94x = 1,470,020.56 × 380,523.58
  4. Step 4: Simplify right side
    979,639.94x = 559,377,486,164.81
  5. Step 5: Solve for x
    x = 559,377,486,164.81/979,639.94
  6. Step 6: Final answer
    x = 571,003.14

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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.