Home / 724,225.64-1,086,334.12-393,901.16

Finding the Fourth Proportional to 724,225.64, 1,086,334.12 and 393,901.16

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Solution

The fourth proportional to 724,225.64, 1,086,334.12 and 393,901.16 is: 590,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,225.64 : 1,086,334.12 = 393,901.16 : x
  2. Step 2: Convert to fraction form
    724,225.64/1,086,334.12 = 393,901.16/x
  3. Step 3: Cross multiply
    724,225.64x = 1,086,334.12 × 393,901.16
  4. Step 4: Simplify right side
    724,225.64x = 427,908,270,015.58
  5. Step 5: Solve for x
    x = 427,908,270,015.58/724,225.64
  6. Step 6: Final answer
    x = 590,849.38

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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.