Home / 1,124,814.40-1,687,369.60-415,340.80

Finding the Fourth Proportional to 1,124,814.40, 1,687,369.60 and 415,340.80

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Solution

The fourth proportional to 1,124,814.40, 1,687,369.60 and 415,340.80 is: 623,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,814.40 : 1,687,369.60 = 415,340.80 : x
  2. Step 2: Convert to fraction form
    1,124,814.40/1,687,369.60 = 415,340.80/x
  3. Step 3: Cross multiply
    1,124,814.40x = 1,687,369.60 × 415,340.80
  4. Step 4: Simplify right side
    1,124,814.40x = 700,833,439,559.68
  5. Step 5: Solve for x
    x = 700,833,439,559.68/1,124,814.40
  6. Step 6: Final answer
    x = 623,065.85

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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.