Home / 458,269.20-688,019.40-268,923.60

Finding the Fourth Proportional to 458,269.20, 688,019.40 and 268,923.60

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Solution

The fourth proportional to 458,269.20, 688,019.40 and 268,923.60 is: 403,746.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,269.20 : 688,019.40 = 268,923.60 : x
  2. Step 2: Convert to fraction form
    458,269.20/688,019.40 = 268,923.60/x
  3. Step 3: Cross multiply
    458,269.20x = 688,019.40 × 268,923.60
  4. Step 4: Simplify right side
    458,269.20x = 185,024,653,917.84
  5. Step 5: Solve for x
    x = 185,024,653,917.84/458,269.20
  6. Step 6: Final answer
    x = 403,746.65

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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.