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Finding the Fourth Proportional to 630,673.60, 946,010.40 and 406,724.80

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Solution

The fourth proportional to 630,673.60, 946,010.40 and 406,724.80 is: 610,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,673.60 : 946,010.40 = 406,724.80 : x
  2. Step 2: Convert to fraction form
    630,673.60/946,010.40 = 406,724.80/x
  3. Step 3: Cross multiply
    630,673.60x = 946,010.40 × 406,724.80
  4. Step 4: Simplify right side
    630,673.60x = 384,765,890,737.92
  5. Step 5: Solve for x
    x = 384,765,890,737.92/630,673.60
  6. Step 6: Final answer
    x = 610,087.20

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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.