Home / 979,638.94-1,470,019.06-380,522.58

Finding the Fourth Proportional to 979,638.94, 1,470,019.06 and 380,522.58

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Solution

The fourth proportional to 979,638.94, 1,470,019.06 and 380,522.58 is: 571,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,638.94 : 1,470,019.06 = 380,522.58 : x
  2. Step 2: Convert to fraction form
    979,638.94/1,470,019.06 = 380,522.58/x
  3. Step 3: Cross multiply
    979,638.94x = 1,470,019.06 × 380,522.58
  4. Step 4: Simplify right side
    979,638.94x = 559,375,445,360.38
  5. Step 5: Solve for x
    x = 559,375,445,360.38/979,638.94
  6. Step 6: Final answer
    x = 571,001.64

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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.