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Finding the Fourth Proportional to 525,483.28, 725,220.44 and 321,668.85

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Solution

The fourth proportional to 525,483.28, 725,220.44 and 321,668.85 is: 443,935.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,483.28 : 725,220.44 = 321,668.85 : x
  2. Step 2: Convert to fraction form
    525,483.28/725,220.44 = 321,668.85/x
  3. Step 3: Cross multiply
    525,483.28x = 725,220.44 × 321,668.85
  4. Step 4: Simplify right side
    525,483.28x = 233,280,824,931.29
  5. Step 5: Solve for x
    x = 233,280,824,931.29/525,483.28
  6. Step 6: Final answer
    x = 443,935.77

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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.