Home / 930,154.60-1,395,231.90-299,132.20

Finding the Fourth Proportional to 930,154.60, 1,395,231.90 and 299,132.20

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Solution

The fourth proportional to 930,154.60, 1,395,231.90 and 299,132.20 is: 448,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,154.60 : 1,395,231.90 = 299,132.20 : x
  2. Step 2: Convert to fraction form
    930,154.60/1,395,231.90 = 299,132.20/x
  3. Step 3: Cross multiply
    930,154.60x = 1,395,231.90 × 299,132.20
  4. Step 4: Simplify right side
    930,154.60x = 417,358,787,757.18
  5. Step 5: Solve for x
    x = 417,358,787,757.18/930,154.60
  6. Step 6: Final answer
    x = 448,698.30

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Half scale
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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.