Home / 864,628.61-1,296,990.21-359,240.69

Finding the Fourth Proportional to 864,628.61, 1,296,990.21 and 359,240.69

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Solution

The fourth proportional to 864,628.61, 1,296,990.21 and 359,240.69 is: 538,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,628.61 : 1,296,990.21 = 359,240.69 : x
  2. Step 2: Convert to fraction form
    864,628.61/1,296,990.21 = 359,240.69/x
  3. Step 3: Cross multiply
    864,628.61x = 1,296,990.21 × 359,240.69
  4. Step 4: Simplify right side
    864,628.61x = 465,931,652,825.85
  5. Step 5: Solve for x
    x = 465,931,652,825.85/864,628.61
  6. Step 6: Final answer
    x = 538,880.68

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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.