Home / 649,619.72-974,714.44-308,309.66

Finding the Fourth Proportional to 649,619.72, 974,714.44 and 308,309.66

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Solution

The fourth proportional to 649,619.72, 974,714.44 and 308,309.66 is: 462,599.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,619.72 : 974,714.44 = 308,309.66 : x
  2. Step 2: Convert to fraction form
    649,619.72/974,714.44 = 308,309.66/x
  3. Step 3: Cross multiply
    649,619.72x = 974,714.44 × 308,309.66
  4. Step 4: Simplify right side
    649,619.72x = 300,513,877,593.49
  5. Step 5: Solve for x
    x = 300,513,877,593.49/649,619.72
  6. Step 6: Final answer
    x = 462,599.68

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1.5x scale

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.