Home / 1,421,278.44-1,960,734.24-847,985.28

Finding the Fourth Proportional to 1,421,278.44, 1,960,734.24 and 847,985.28

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Solution

The fourth proportional to 1,421,278.44, 1,960,734.24 and 847,985.28 is: 1,169,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,278.44 : 1,960,734.24 = 847,985.28 : x
  2. Step 2: Convert to fraction form
    1,421,278.44/1,960,734.24 = 847,985.28/x
  3. Step 3: Cross multiply
    1,421,278.44x = 1,960,734.24 × 847,985.28
  4. Step 4: Simplify right side
    1,421,278.44x = 1,662,673,773,511.99
  5. Step 5: Solve for x
    x = 1,662,673,773,511.99/1,421,278.44
  6. Step 6: Final answer
    x = 1,169,843.80

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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.