Home / 630,623.80-945,935.70-488,906.20

Finding the Fourth Proportional to 630,623.80, 945,935.70 and 488,906.20

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Solution

The fourth proportional to 630,623.80, 945,935.70 and 488,906.20 is: 733,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,623.80 : 945,935.70 = 488,906.20 : x
  2. Step 2: Convert to fraction form
    630,623.80/945,935.70 = 488,906.20/x
  3. Step 3: Cross multiply
    630,623.80x = 945,935.70 × 488,906.20
  4. Step 4: Simplify right side
    630,623.80x = 462,473,828,531.34
  5. Step 5: Solve for x
    x = 462,473,828,531.34/630,623.80
  6. Step 6: Final answer
    x = 733,359.30

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Half scale
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Double scale
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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.