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Finding the Fourth Proportional to 630,905.40, 946,358.10 and 365,184.90

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Solution

The fourth proportional to 630,905.40, 946,358.10 and 365,184.90 is: 547,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,905.40 : 946,358.10 = 365,184.90 : x
  2. Step 2: Convert to fraction form
    630,905.40/946,358.10 = 365,184.90/x
  3. Step 3: Cross multiply
    630,905.40x = 946,358.10 × 365,184.90
  4. Step 4: Simplify right side
    630,905.40x = 345,595,688,112.69
  5. Step 5: Solve for x
    x = 345,595,688,112.69/630,905.40
  6. Step 6: Final answer
    x = 547,777.35

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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.