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Finding the Fourth Proportional to 649,000.20, 973,500.30 and 425,051.40

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Solution

The fourth proportional to 649,000.20, 973,500.30 and 425,051.40 is: 637,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,000.20 : 973,500.30 = 425,051.40 : x
  2. Step 2: Convert to fraction form
    649,000.20/973,500.30 = 425,051.40/x
  3. Step 3: Cross multiply
    649,000.20x = 973,500.30 × 425,051.40
  4. Step 4: Simplify right side
    649,000.20x = 413,787,665,415.42
  5. Step 5: Solve for x
    x = 413,787,665,415.42/649,000.20
  6. Step 6: Final answer
    x = 637,577.10

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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.