Home / 820,176.70-1,230,265.05-618,097.90

Finding the Fourth Proportional to 820,176.70, 1,230,265.05 and 618,097.90

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Solution

The fourth proportional to 820,176.70, 1,230,265.05 and 618,097.90 is: 927,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,176.70 : 1,230,265.05 = 618,097.90 : x
  2. Step 2: Convert to fraction form
    820,176.70/1,230,265.05 = 618,097.90/x
  3. Step 3: Cross multiply
    820,176.70x = 1,230,265.05 × 618,097.90
  4. Step 4: Simplify right side
    820,176.70x = 760,424,243,848.40
  5. Step 5: Solve for x
    x = 760,424,243,848.40/820,176.70
  6. Step 6: Final answer
    x = 927,146.85

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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.