Home / 1,119,338.84-1,679,041.13-309,729.90

Finding the Fourth Proportional to 1,119,338.84, 1,679,041.13 and 309,729.90

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Solution

The fourth proportional to 1,119,338.84, 1,679,041.13 and 309,729.90 is: 464,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,338.84 : 1,679,041.13 = 309,729.90 : x
  2. Step 2: Convert to fraction form
    1,119,338.84/1,679,041.13 = 309,729.90/x
  3. Step 3: Cross multiply
    1,119,338.84x = 1,679,041.13 × 309,729.90
  4. Step 4: Simplify right side
    1,119,338.84x = 520,049,241,290.79
  5. Step 5: Solve for x
    x = 520,049,241,290.79/1,119,338.84
  6. Step 6: Final answer
    x = 464,603.95

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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.