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Finding the Fourth Proportional to 630,903.40, 946,355.10 and 365,182.90

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Solution

The fourth proportional to 630,903.40, 946,355.10 and 365,182.90 is: 547,774.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,903.40 : 946,355.10 = 365,182.90 : x
  2. Step 2: Convert to fraction form
    630,903.40/946,355.10 = 365,182.90/x
  3. Step 3: Cross multiply
    630,903.40x = 946,355.10 × 365,182.90
  4. Step 4: Simplify right side
    630,903.40x = 345,592,699,847.79
  5. Step 5: Solve for x
    x = 345,592,699,847.79/630,903.40
  6. Step 6: Final answer
    x = 547,774.35

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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.