Home / 805,425.37-1,111,457.12-442,827.65

Finding the Fourth Proportional to 805,425.37, 1,111,457.12 and 442,827.65

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Solution

The fourth proportional to 805,425.37, 1,111,457.12 and 442,827.65 is: 611,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,425.37 : 1,111,457.12 = 442,827.65 : x
  2. Step 2: Convert to fraction form
    805,425.37/1,111,457.12 = 442,827.65/x
  3. Step 3: Cross multiply
    805,425.37x = 1,111,457.12 × 442,827.65
  4. Step 4: Simplify right side
    805,425.37x = 492,183,945,089.87
  5. Step 5: Solve for x
    x = 492,183,945,089.87/805,425.37
  6. Step 6: Final answer
    x = 611,085.73

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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.