Home / 698,464.80-1,047,697.20-623,815.20

Finding the Fourth Proportional to 698,464.80, 1,047,697.20 and 623,815.20

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Solution

The fourth proportional to 698,464.80, 1,047,697.20 and 623,815.20 is: 935,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,464.80 : 1,047,697.20 = 623,815.20 : x
  2. Step 2: Convert to fraction form
    698,464.80/1,047,697.20 = 623,815.20/x
  3. Step 3: Cross multiply
    698,464.80x = 1,047,697.20 × 623,815.20
  4. Step 4: Simplify right side
    698,464.80x = 653,569,438,357.44
  5. Step 5: Solve for x
    x = 653,569,438,357.44/698,464.80
  6. Step 6: Final answer
    x = 935,722.80

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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.