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Finding the Fourth Proportional to 628,200.96, 866,973.51 and 370,080.27

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Solution

The fourth proportional to 628,200.96, 866,973.51 and 370,080.27 is: 510,743.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,200.96 : 866,973.51 = 370,080.27 : x
  2. Step 2: Convert to fraction form
    628,200.96/866,973.51 = 370,080.27/x
  3. Step 3: Cross multiply
    628,200.96x = 866,973.51 × 370,080.27
  4. Step 4: Simplify right side
    628,200.96x = 320,849,790,663.65
  5. Step 5: Solve for x
    x = 320,849,790,663.65/628,200.96
  6. Step 6: Final answer
    x = 510,743.87

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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.