Home / 769,572.10-1,154,358.12-208,606.60

Finding the Fourth Proportional to 769,572.10, 1,154,358.12 and 208,606.60

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Solution

The fourth proportional to 769,572.10, 1,154,358.12 and 208,606.60 is: 312,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,572.10 : 1,154,358.12 = 208,606.60 : x
  2. Step 2: Convert to fraction form
    769,572.10/1,154,358.12 = 208,606.60/x
  3. Step 3: Cross multiply
    769,572.10x = 1,154,358.12 × 208,606.60
  4. Step 4: Simplify right side
    769,572.10x = 240,806,722,595.59
  5. Step 5: Solve for x
    x = 240,806,722,595.59/769,572.10
  6. Step 6: Final answer
    x = 312,909.89

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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.