Home / 398,699.06-597,873.02-145,913.85

Finding the Fourth Proportional to 398,699.06, 597,873.02 and 145,913.85

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Solution

The fourth proportional to 398,699.06, 597,873.02 and 145,913.85 is: 218,806.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,699.06 : 597,873.02 = 145,913.85 : x
  2. Step 2: Convert to fraction form
    398,699.06/597,873.02 = 145,913.85/x
  3. Step 3: Cross multiply
    398,699.06x = 597,873.02 × 145,913.85
  4. Step 4: Simplify right side
    398,699.06x = 87,237,953,429.76
  5. Step 5: Solve for x
    x = 87,237,953,429.76/398,699.06
  6. Step 6: Final answer
    x = 218,806.52

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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.