Home / 913,249.84-1,369,653.18-380,480.20

Finding the Fourth Proportional to 913,249.84, 1,369,653.18 and 380,480.20

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Solution

The fourth proportional to 913,249.84, 1,369,653.18 and 380,480.20 is: 570,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,249.84 : 1,369,653.18 = 380,480.20 : x
  2. Step 2: Convert to fraction form
    913,249.84/1,369,653.18 = 380,480.20/x
  3. Step 3: Cross multiply
    913,249.84x = 1,369,653.18 × 380,480.20
  4. Step 4: Simplify right side
    913,249.84x = 521,125,915,857.04
  5. Step 5: Solve for x
    x = 521,125,915,857.04/913,249.84
  6. Step 6: Final answer
    x = 570,627.98

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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.