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Finding the Fourth Proportional to 938,604.96, 1,408,326 and 432,894

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Solution

The fourth proportional to 938,604.96, 1,408,326 and 432,894 is: 649,534.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,604.96 : 1,408,326 = 432,894 : x
  2. Step 2: Convert to fraction form
    938,604.96/1,408,326 = 432,894/x
  3. Step 3: Cross multiply
    938,604.96x = 1,408,326 × 432,894
  4. Step 4: Simplify right side
    938,604.96x = 609,655,875,444
  5. Step 5: Solve for x
    x = 609,655,875,444/938,604.96
  6. Step 6: Final answer
    x = 649,534.04

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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.