Home / 805,587.57-1,111,717.87-438,065.87

Finding the Fourth Proportional to 805,587.57, 1,111,717.87 and 438,065.87

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Solution

The fourth proportional to 805,587.57, 1,111,717.87 and 438,065.87 is: 604,534.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,587.57 : 1,111,717.87 = 438,065.87 : x
  2. Step 2: Convert to fraction form
    805,587.57/1,111,717.87 = 438,065.87/x
  3. Step 3: Cross multiply
    805,587.57x = 1,111,717.87 × 438,065.87
  4. Step 4: Simplify right side
    805,587.57x = 487,005,649,262.34
  5. Step 5: Solve for x
    x = 487,005,649,262.34/805,587.57
  6. Step 6: Final answer
    x = 604,534.71

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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.