Home / 939,211.76-1,408,204.88-618,392.64

Finding the Fourth Proportional to 939,211.76, 1,408,204.88 and 618,392.64

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Solution

The fourth proportional to 939,211.76, 1,408,204.88 and 618,392.64 is: 927,185.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,211.76 : 1,408,204.88 = 618,392.64 : x
  2. Step 2: Convert to fraction form
    939,211.76/1,408,204.88 = 618,392.64/x
  3. Step 3: Cross multiply
    939,211.76x = 1,408,204.88 × 618,392.64
  4. Step 4: Simplify right side
    939,211.76x = 870,823,533,404.08
  5. Step 5: Solve for x
    x = 870,823,533,404.08/939,211.76
  6. Step 6: Final answer
    x = 927,185.51

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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.