Home / 649,625.60-974,438.40-317,849.60

Finding the Fourth Proportional to 649,625.60, 974,438.40 and 317,849.60

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Solution

The fourth proportional to 649,625.60, 974,438.40 and 317,849.60 is: 476,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,625.60 : 974,438.40 = 317,849.60 : x
  2. Step 2: Convert to fraction form
    649,625.60/974,438.40 = 317,849.60/x
  3. Step 3: Cross multiply
    649,625.60x = 974,438.40 × 317,849.60
  4. Step 4: Simplify right side
    649,625.60x = 309,724,855,664.64
  5. Step 5: Solve for x
    x = 309,724,855,664.64/649,625.60
  6. Step 6: Final answer
    x = 476,774.40

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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.