Home / 1,190,040.30-1,784,878.20-391,323.60

Finding the Fourth Proportional to 1,190,040.30, 1,784,878.20 and 391,323.60

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Solution

The fourth proportional to 1,190,040.30, 1,784,878.20 and 391,323.60 is: 586,925.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,040.30 : 1,784,878.20 = 391,323.60 : x
  2. Step 2: Convert to fraction form
    1,190,040.30/1,784,878.20 = 391,323.60/x
  3. Step 3: Cross multiply
    1,190,040.30x = 1,784,878.20 × 391,323.60
  4. Step 4: Simplify right side
    1,190,040.30x = 698,464,962,785.52
  5. Step 5: Solve for x
    x = 698,464,962,785.52/1,190,040.30
  6. Step 6: Final answer
    x = 586,925.47

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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.