Home / 979,635.93-1,470,014.55-380,519.58

Finding the Fourth Proportional to 979,635.93, 1,470,014.55 and 380,519.58

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Solution

The fourth proportional to 979,635.93, 1,470,014.55 and 380,519.58 is: 570,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,635.93 : 1,470,014.55 = 380,519.58 : x
  2. Step 2: Convert to fraction form
    979,635.93/1,470,014.55 = 380,519.58/x
  3. Step 3: Cross multiply
    979,635.93x = 1,470,014.55 × 380,519.58
  4. Step 4: Simplify right side
    979,635.93x = 559,369,319,159.89
  5. Step 5: Solve for x
    x = 559,369,319,159.89/979,635.93
  6. Step 6: Final answer
    x = 570,997.14

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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.