Home / 401,050.20-601,575.30-398,285.40

Finding the Fourth Proportional to 401,050.20, 601,575.30 and 398,285.40

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Solution

The fourth proportional to 401,050.20, 601,575.30 and 398,285.40 is: 597,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,050.20 : 601,575.30 = 398,285.40 : x
  2. Step 2: Convert to fraction form
    401,050.20/601,575.30 = 398,285.40/x
  3. Step 3: Cross multiply
    401,050.20x = 601,575.30 × 398,285.40
  4. Step 4: Simplify right side
    401,050.20x = 239,598,658,990.62
  5. Step 5: Solve for x
    x = 239,598,658,990.62/401,050.20
  6. Step 6: Final answer
    x = 597,428.10

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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.