Home / 1,304,920.80-1,957,381.20-1,210,442.40

Finding the Fourth Proportional to 1,304,920.80, 1,957,381.20 and 1,210,442.40

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Solution

The fourth proportional to 1,304,920.80, 1,957,381.20 and 1,210,442.40 is: 1,815,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,920.80 : 1,957,381.20 = 1,210,442.40 : x
  2. Step 2: Convert to fraction form
    1,304,920.80/1,957,381.20 = 1,210,442.40/x
  3. Step 3: Cross multiply
    1,304,920.80x = 1,957,381.20 × 1,210,442.40
  4. Step 4: Simplify right side
    1,304,920.80x = 2,369,297,197,442.88
  5. Step 5: Solve for x
    x = 2,369,297,197,442.88/1,304,920.80
  6. Step 6: Final answer
    x = 1,815,663.60

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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.