Home / 492,919.40-738,795.90-208,609.40

Finding the Fourth Proportional to 492,919.40, 738,795.90 and 208,609.40

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Solution

The fourth proportional to 492,919.40, 738,795.90 and 208,609.40 is: 312,667.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,919.40 : 738,795.90 = 208,609.40 : x
  2. Step 2: Convert to fraction form
    492,919.40/738,795.90 = 208,609.40/x
  3. Step 3: Cross multiply
    492,919.40x = 738,795.90 × 208,609.40
  4. Step 4: Simplify right side
    492,919.40x = 154,119,769,421.46
  5. Step 5: Solve for x
    x = 154,119,769,421.46/492,919.40
  6. Step 6: Final answer
    x = 312,667.28

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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.