Home / 649,268.20-973,902.30-425,319.40

Finding the Fourth Proportional to 649,268.20, 973,902.30 and 425,319.40

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Solution

The fourth proportional to 649,268.20, 973,902.30 and 425,319.40 is: 637,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,268.20 : 973,902.30 = 425,319.40 : x
  2. Step 2: Convert to fraction form
    649,268.20/973,902.30 = 425,319.40/x
  3. Step 3: Cross multiply
    649,268.20x = 973,902.30 × 425,319.40
  4. Step 4: Simplify right side
    649,268.20x = 414,219,541,894.62
  5. Step 5: Solve for x
    x = 414,219,541,894.62/649,268.20
  6. Step 6: Final answer
    x = 637,979.10

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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.