Home / 990,986.60-1,368,128.94-652,439

Finding the Fourth Proportional to 990,986.60, 1,368,128.94 and 652,439

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Solution

The fourth proportional to 990,986.60, 1,368,128.94 and 652,439 is: 900,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,986.60 : 1,368,128.94 = 652,439 : x
  2. Step 2: Convert to fraction form
    990,986.60/1,368,128.94 = 652,439/x
  3. Step 3: Cross multiply
    990,986.60x = 1,368,128.94 × 652,439
  4. Step 4: Simplify right side
    990,986.60x = 892,620,677,484.66
  5. Step 5: Solve for x
    x = 892,620,677,484.66/990,986.60
  6. Step 6: Final answer
    x = 900,739.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.