Home / 1,707,894.40-2,559,869.52-642,256.78

Finding the Fourth Proportional to 1,707,894.40, 2,559,869.52 and 642,256.78

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Solution

The fourth proportional to 1,707,894.40, 2,559,869.52 and 642,256.78 is: 962,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707,894.40 : 2,559,869.52 = 642,256.78 : x
  2. Step 2: Convert to fraction form
    1,707,894.40/2,559,869.52 = 642,256.78/x
  3. Step 3: Cross multiply
    1,707,894.40x = 2,559,869.52 × 642,256.78
  4. Step 4: Simplify right side
    1,707,894.40x = 1,644,093,555,135.35
  5. Step 5: Solve for x
    x = 1,644,093,555,135.35/1,707,894.40
  6. Step 6: Final answer
    x = 962,643.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.