Home / 1,428,932.09-1,971,029.32-847,743.74

Finding the Fourth Proportional to 1,428,932.09, 1,971,029.32 and 847,743.74

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Solution

The fourth proportional to 1,428,932.09, 1,971,029.32 and 847,743.74 is: 1,169,354.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,932.09 : 1,971,029.32 = 847,743.74 : x
  2. Step 2: Convert to fraction form
    1,428,932.09/1,971,029.32 = 847,743.74/x
  3. Step 3: Cross multiply
    1,428,932.09x = 1,971,029.32 × 847,743.74
  4. Step 4: Simplify right side
    1,428,932.09x = 1,670,927,770,194.67
  5. Step 5: Solve for x
    x = 1,670,927,770,194.67/1,428,932.09
  6. Step 6: Final answer
    x = 1,169,354.22

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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.