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Finding the Fourth Proportional to 453,756.60, 680,894.10 and 313,615.80

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Solution

The fourth proportional to 453,756.60, 680,894.10 and 313,615.80 is: 470,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,756.60 : 680,894.10 = 313,615.80 : x
  2. Step 2: Convert to fraction form
    453,756.60/680,894.10 = 313,615.80/x
  3. Step 3: Cross multiply
    453,756.60x = 680,894.10 × 313,615.80
  4. Step 4: Simplify right side
    453,756.60x = 213,539,147,886.78
  5. Step 5: Solve for x
    x = 213,539,147,886.78/453,756.60
  6. Step 6: Final answer
    x = 470,602.85

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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.