Home / 979,905.92-1,470,419.36-380,788.80

Finding the Fourth Proportional to 979,905.92, 1,470,419.36 and 380,788.80

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Solution

The fourth proportional to 979,905.92, 1,470,419.36 and 380,788.80 is: 571,401.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,905.92 : 1,470,419.36 = 380,788.80 : x
  2. Step 2: Convert to fraction form
    979,905.92/1,470,419.36 = 380,788.80/x
  3. Step 3: Cross multiply
    979,905.92x = 1,470,419.36 × 380,788.80
  4. Step 4: Simplify right side
    979,905.92x = 559,919,223,591.17
  5. Step 5: Solve for x
    x = 559,919,223,591.17/979,905.92
  6. Step 6: Final answer
    x = 571,401.00

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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.