Home / 840,035.82-1,260,459.18-413,340.24

Finding the Fourth Proportional to 840,035.82, 1,260,459.18 and 413,340.24

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Solution

The fourth proportional to 840,035.82, 1,260,459.18 and 413,340.24 is: 620,209.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,035.82 : 1,260,459.18 = 413,340.24 : x
  2. Step 2: Convert to fraction form
    840,035.82/1,260,459.18 = 413,340.24/x
  3. Step 3: Cross multiply
    840,035.82x = 1,260,459.18 × 413,340.24
  4. Step 4: Simplify right side
    840,035.82x = 520,998,499,971.40
  5. Step 5: Solve for x
    x = 520,998,499,971.40/840,035.82
  6. Step 6: Final answer
    x = 620,209.86

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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.