Home / 445,830.70-668,746.05-268,246.30

Finding the Fourth Proportional to 445,830.70, 668,746.05 and 268,246.30

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Solution

The fourth proportional to 445,830.70, 668,746.05 and 268,246.30 is: 402,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,830.70 : 668,746.05 = 268,246.30 : x
  2. Step 2: Convert to fraction form
    445,830.70/668,746.05 = 268,246.30/x
  3. Step 3: Cross multiply
    445,830.70x = 668,746.05 × 268,246.30
  4. Step 4: Simplify right side
    445,830.70x = 179,388,653,552.12
  5. Step 5: Solve for x
    x = 179,388,653,552.12/445,830.70
  6. Step 6: Final answer
    x = 402,369.45

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Similar ratio
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1.5x scale

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.