Home / 1,087,280.80-1,631,180.40-525,853.60

Finding the Fourth Proportional to 1,087,280.80, 1,631,180.40 and 525,853.60

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Solution

The fourth proportional to 1,087,280.80, 1,631,180.40 and 525,853.60 is: 788,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,280.80 : 1,631,180.40 = 525,853.60 : x
  2. Step 2: Convert to fraction form
    1,087,280.80/1,631,180.40 = 525,853.60/x
  3. Step 3: Cross multiply
    1,087,280.80x = 1,631,180.40 × 525,853.60
  4. Step 4: Simplify right side
    1,087,280.80x = 857,762,085,589.44
  5. Step 5: Solve for x
    x = 857,762,085,589.44/1,087,280.80
  6. Step 6: Final answer
    x = 788,905.76

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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.