Home / 805,456.53-1,111,534.16-442,903.86

Finding the Fourth Proportional to 805,456.53, 1,111,534.16 and 442,903.86

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Solution

The fourth proportional to 805,456.53, 1,111,534.16 and 442,903.86 is: 611,209.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,456.53 : 1,111,534.16 = 442,903.86 : x
  2. Step 2: Convert to fraction form
    805,456.53/1,111,534.16 = 442,903.86/x
  3. Step 3: Cross multiply
    805,456.53x = 1,111,534.16 × 442,903.86
  4. Step 4: Simplify right side
    805,456.53x = 492,302,767,771.34
  5. Step 5: Solve for x
    x = 492,302,767,771.34/805,456.53
  6. Step 6: Final answer
    x = 611,209.61

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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.