Home / 677,834.20-1,016,459.70-340,744.60

Finding the Fourth Proportional to 677,834.20, 1,016,459.70 and 340,744.60

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Solution

The fourth proportional to 677,834.20, 1,016,459.70 and 340,744.60 is: 510,970.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,834.20 : 1,016,459.70 = 340,744.60 : x
  2. Step 2: Convert to fraction form
    677,834.20/1,016,459.70 = 340,744.60/x
  3. Step 3: Cross multiply
    677,834.20x = 1,016,459.70 × 340,744.60
  4. Step 4: Simplify right side
    677,834.20x = 346,353,153,892.62
  5. Step 5: Solve for x
    x = 346,353,153,892.62/677,834.20
  6. Step 6: Final answer
    x = 510,970.31

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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.