Home / 764,017.20-1,146,256.20-409,201.20

Finding the Fourth Proportional to 764,017.20, 1,146,256.20 and 409,201.20

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Solution

The fourth proportional to 764,017.20, 1,146,256.20 and 409,201.20 is: 613,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,017.20 : 1,146,256.20 = 409,201.20 : x
  2. Step 2: Convert to fraction form
    764,017.20/1,146,256.20 = 409,201.20/x
  3. Step 3: Cross multiply
    764,017.20x = 1,146,256.20 × 409,201.20
  4. Step 4: Simplify right side
    764,017.20x = 469,049,412,547.44
  5. Step 5: Solve for x
    x = 469,049,412,547.44/764,017.20
  6. Step 6: Final answer
    x = 613,925.20

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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.