Home / 639,136.04-882,026.20-352,674.60

Finding the Fourth Proportional to 639,136.04, 882,026.20 and 352,674.60

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Solution

The fourth proportional to 639,136.04, 882,026.20 and 352,674.60 is: 486,701.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,136.04 : 882,026.20 = 352,674.60 : x
  2. Step 2: Convert to fraction form
    639,136.04/882,026.20 = 352,674.60/x
  3. Step 3: Cross multiply
    639,136.04x = 882,026.20 × 352,674.60
  4. Step 4: Simplify right side
    639,136.04x = 311,068,237,274.52
  5. Step 5: Solve for x
    x = 311,068,237,274.52/639,136.04
  6. Step 6: Final answer
    x = 486,701.14

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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.