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Finding the Fourth Proportional to 1,146,848.40, 1,721,584.80 and 673,800.30

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Solution

The fourth proportional to 1,146,848.40, 1,721,584.80 and 673,800.30 is: 1,011,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,848.40 : 1,721,584.80 = 673,800.30 : x
  2. Step 2: Convert to fraction form
    1,146,848.40/1,721,584.80 = 673,800.30/x
  3. Step 3: Cross multiply
    1,146,848.40x = 1,721,584.80 × 673,800.30
  4. Step 4: Simplify right side
    1,146,848.40x = 1,160,004,354,715.44
  5. Step 5: Solve for x
    x = 1,160,004,354,715.44/1,146,848.40
  6. Step 6: Final answer
    x = 1,011,471.40

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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.