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Finding the Fourth Proportional to 1,429,200.72, 1,972,392.66 and 944,933.22

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Solution

The fourth proportional to 1,429,200.72, 1,972,392.66 and 944,933.22 is: 1,304,071.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,200.72 : 1,972,392.66 = 944,933.22 : x
  2. Step 2: Convert to fraction form
    1,429,200.72/1,972,392.66 = 944,933.22/x
  3. Step 3: Cross multiply
    1,429,200.72x = 1,972,392.66 × 944,933.22
  4. Step 4: Simplify right side
    1,429,200.72x = 1,863,779,347,318.17
  5. Step 5: Solve for x
    x = 1,863,779,347,318.17/1,429,200.72
  6. Step 6: Final answer
    x = 1,304,071.09

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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.