Home / 755,323.71-1,042,111.94-428,582.67

Finding the Fourth Proportional to 755,323.71, 1,042,111.94 and 428,582.67

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Solution

The fourth proportional to 755,323.71, 1,042,111.94 and 428,582.67 is: 591,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,323.71 : 1,042,111.94 = 428,582.67 : x
  2. Step 2: Convert to fraction form
    755,323.71/1,042,111.94 = 428,582.67/x
  3. Step 3: Cross multiply
    755,323.71x = 1,042,111.94 × 428,582.67
  4. Step 4: Simplify right side
    755,323.71x = 446,631,117,684.08
  5. Step 5: Solve for x
    x = 446,631,117,684.08/755,323.71
  6. Step 6: Final answer
    x = 591,310.87

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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.