Home / 516,025.20-774,037.80-313,946.40

Finding the Fourth Proportional to 516,025.20, 774,037.80 and 313,946.40

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Solution

The fourth proportional to 516,025.20, 774,037.80 and 313,946.40 is: 470,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,025.20 : 774,037.80 = 313,946.40 : x
  2. Step 2: Convert to fraction form
    516,025.20/774,037.80 = 313,946.40/x
  3. Step 3: Cross multiply
    516,025.20x = 774,037.80 × 313,946.40
  4. Step 4: Simplify right side
    516,025.20x = 243,006,380,773.92
  5. Step 5: Solve for x
    x = 243,006,380,773.92/516,025.20
  6. Step 6: Final answer
    x = 470,919.60

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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.