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Finding the Fourth Proportional to 664,762.92, 916,269.88 and 470,922.28

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Solution

The fourth proportional to 664,762.92, 916,269.88 and 470,922.28 is: 649,091.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,762.92 : 916,269.88 = 470,922.28 : x
  2. Step 2: Convert to fraction form
    664,762.92/916,269.88 = 470,922.28/x
  3. Step 3: Cross multiply
    664,762.92x = 916,269.88 × 470,922.28
  4. Step 4: Simplify right side
    664,762.92x = 431,491,900,984.93
  5. Step 5: Solve for x
    x = 431,491,900,984.93/664,762.92
  6. Step 6: Final answer
    x = 649,091.41

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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.