Home / 839,034.37-1,257,575.10-479,457.21

Finding the Fourth Proportional to 839,034.37, 1,257,575.10 and 479,457.21

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Solution

The fourth proportional to 839,034.37, 1,257,575.10 and 479,457.21 is: 718,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,034.37 : 1,257,575.10 = 479,457.21 : x
  2. Step 2: Convert to fraction form
    839,034.37/1,257,575.10 = 479,457.21/x
  3. Step 3: Cross multiply
    839,034.37x = 1,257,575.10 × 479,457.21
  4. Step 4: Simplify right side
    839,034.37x = 602,953,448,811.47
  5. Step 5: Solve for x
    x = 602,953,448,811.47/839,034.37
  6. Step 6: Final answer
    x = 718,627.83

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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.