Home / 1,423,994.40-1,965,108.96-779,408.96

Finding the Fourth Proportional to 1,423,994.40, 1,965,108.96 and 779,408.96

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Solution

The fourth proportional to 1,423,994.40, 1,965,108.96 and 779,408.96 is: 1,075,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,994.40 : 1,965,108.96 = 779,408.96 : x
  2. Step 2: Convert to fraction form
    1,423,994.40/1,965,108.96 = 779,408.96/x
  3. Step 3: Cross multiply
    1,423,994.40x = 1,965,108.96 × 779,408.96
  4. Step 4: Simplify right side
    1,423,994.40x = 1,531,623,520,974.74
  5. Step 5: Solve for x
    x = 1,531,623,520,974.74/1,423,994.40
  6. Step 6: Final answer
    x = 1,075,582.55

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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.