Home / 829,816.26-1,145,400.30-485,732.67

Finding the Fourth Proportional to 829,816.26, 1,145,400.30 and 485,732.67

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Solution

The fourth proportional to 829,816.26, 1,145,400.30 and 485,732.67 is: 670,459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,816.26 : 1,145,400.30 = 485,732.67 : x
  2. Step 2: Convert to fraction form
    829,816.26/1,145,400.30 = 485,732.67/x
  3. Step 3: Cross multiply
    829,816.26x = 1,145,400.30 × 485,732.67
  4. Step 4: Simplify right side
    829,816.26x = 556,358,345,937.80
  5. Step 5: Solve for x
    x = 556,358,345,937.80/829,816.26
  6. Step 6: Final answer
    x = 670,459.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.