Home / 746,052.48-1,119,409.56-390,982.20

Finding the Fourth Proportional to 746,052.48, 1,119,409.56 and 390,982.20

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Solution

The fourth proportional to 746,052.48, 1,119,409.56 and 390,982.20 is: 586,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,052.48 : 1,119,409.56 = 390,982.20 : x
  2. Step 2: Convert to fraction form
    746,052.48/1,119,409.56 = 390,982.20/x
  3. Step 3: Cross multiply
    746,052.48x = 1,119,409.56 × 390,982.20
  4. Step 4: Simplify right side
    746,052.48x = 437,669,212,469.83
  5. Step 5: Solve for x
    x = 437,669,212,469.83/746,052.48
  6. Step 6: Final answer
    x = 586,646.68

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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.